1
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Babic T, Ugrin M, Jeremic S, Kojic M, Dinic J, Banovic Djeri B, Zoidakis J, Nikolic A. Dysregulation of transcripts SMAD4-209 and SMAD4-213 and their respective promoters in colon cancer cell lines. J Cancer 2024; 15:5118-5131. [PMID: 39132157 PMCID: PMC11310865 DOI: 10.7150/jca.98911] [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: 05/26/2024] [Accepted: 07/18/2024] [Indexed: 08/13/2024] Open
Abstract
Background: The pervasive role of alternative promoters in context-specific isoform expression and the importance of promoter choice over its level of transcriptional activity have been recently implied based on pan-cancer in silico studies. We aimed to explore this phenomenon at the cellular level on the example of a major tumor suppressor SMAD4 in search of molecular mechanisms in colorectal cancer that could be exploited for novel biomarkers or therapeutic approaches. Methods: Multi-omics technologies, in silico tools and in vitro functional assays were applied to analyze the transcripts expression and the alternative promoters' function of the SMAD4 gene in colon cell lines HCEC-1CT, HCT116, DLD-1, SW480 and SW620. Results: High expression of the transcript SMAD4-213 emerged as a hallmark of colon cancer cells, while in silico tools point to its possible additional role and potential for sponging miRNAs. Based on the observed dysregulation of SMAD4-209 and SMAD4-213 in malignant vs. non-malignant colon cells, we propose that their expression ratio might be a solid biomarker candidate for colorectal cancer detection. Conclusions: A differential pattern of the respective promoters' activity was observed that corresponds to the expression of transcripts, confirming the role of alternative promoters in context-specific isoform expression. The investigated SMAD4 promoters and transcripts harbor translational potential that should be further investigated.
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Affiliation(s)
- Tamara Babic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia
| | - Milena Ugrin
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia
| | - Sanja Jeremic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia
| | - Milan Kojic
- Institute of Virology, Vaccines and Sera “Torlak”, 11152 Belgrade, Serbia
| | - Jelena Dinic
- Institute for Biological Research “Siniša Stanković” — National Institute of the Republic of Serbia, University of Belgrade, 11060 Belgrade, Serbia
| | - Bojana Banovic Djeri
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia
| | - Jerome Zoidakis
- Department of Biology, National and Kapodistrian University of Athens, 15701 Athens, Greece
- Proteomics Laboratory, Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
| | - Aleksandra Nikolic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia
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2
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Sun L, Xing J, Zhou X, Song X, Gao S. Wnt/β-catenin signalling, epithelial-mesenchymal transition and crosslink signalling in colorectal cancer cells. Biomed Pharmacother 2024; 175:116685. [PMID: 38710151 DOI: 10.1016/j.biopha.2024.116685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024] Open
Abstract
Colorectal cancer (CRC), with its significant incidence and metastatic rates, profoundly affects human health. A common oncogenic event in CRC is the aberrant activation of the Wnt/β-catenin signalling pathway, which drives both the initiation and progression of the disease. Persistent Wnt/β-catenin signalling facilitates the epithelial-mesenchymal transition (EMT), which accelerates CRC invasion and metastasis. This review provides a summary of recent molecular studies on the role of the Wnt/β-catenin signalling axis in regulating EMT in CRC cells, which triggers metastatic pathogenesis. We present a comprehensive examination of the EMT process and its transcriptional controllers, with an emphasis on the crucial functions of β-catenin, EMT transcription factors (EMT-TFs). We also review recent evidences showing that hyperactive Wnt/β-catenin signalling triggers EMT and metastatic phenotypes in CRC via "Destruction complex" of β-catenin mechanisms. Potential therapeutic and challenges approache to suppress EMT and prevent CRC cells metastasis by targeting Wnt/β-catenin signalling are also discussed. These include direct β-catenin inhibitors and novel targets of the Wnt pathway, and finally highlight novel potential combinational treatment options based on the inhibition of the Wnt pathway.
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Affiliation(s)
- Luanbiao Sun
- China-Japan Union Hospital of Jilin University, Changchun, Jilin 130000, PR China
| | - Jianpeng Xing
- China-Japan Union Hospital of Jilin University, Changchun, Jilin 130000, PR China
| | - Xuanpeng Zhou
- China-Japan Union Hospital of Jilin University, Changchun, Jilin 130000, PR China
| | - Xinyuan Song
- The Chinese University of Hong Kong, New Territories 999077, Hong Kong Special Administrative Region of China
| | - Shuohui Gao
- China-Japan Union Hospital of Jilin University, Changchun, Jilin 130000, PR China.
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3
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Mozammel N, Baghbani E, Amini M, Jodeiry Zaer S, Baghay Esfandyari Y, Tohidast M, Hosseini SS, Rahmani SA, Mokhtarzadeh A, Baradaran B. The Simultaneous Effects of miR-145-5p and hsa-let-7a-3p on Colorectal Tumorigenesis: In Vitro Evidence. Adv Pharm Bull 2024; 14:231-240. [PMID: 38585468 PMCID: PMC10997926 DOI: 10.34172/apb.2024.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 06/09/2023] [Accepted: 07/14/2023] [Indexed: 04/09/2024] Open
Abstract
Purpose MicroRNAs (miRNAs) are a group of small regulatory non-coding RNAs, which are dysregulated through tumor progression. let-7 and MIR-145 are both tumor suppressor microRNAs that are downregulated in a wide array of cancers including colorectal cancer (CRC). Methods This study was aimed to investigate the effect of simultaneous replacement of these two tumor suppressor miRNAs on proliferation, apoptosis, and migration of CRC cells. HCT-116 with lower expression levels of hsa-let-7a-3p and MIR-145-5p was selected for functional investigations. The cells were cultured and transfected with hsa-let-7a and MIR-145, separately and in combination. Cell viability and apoptosis rates were assessed by MTT assay and flow cytometry, respectively. Cell cycle status was further evaluated using flow cytometry and qRT-PCR was employed to evaluate gene expression. Results The obtained results showed that exogenous overexpression of MIR-145 and hsa-let-7a in HCT-116 cells could cooperatively decrease CRC cell proliferation and induce sub-G1 cell cycle arrest. Moreover, hsa-let-7a and MIR-145 co-transfection significantly increased apoptosis induction compared to separate transfected cells and control through modulating the expression levels of apoptosis-related genes including Bax, Bcl-2, P53, Caspase-3, Caspase-8, and Caspase-9. Furthermore, qRT-PCR results illustrated that hsa-let-7a and MIR-145 combination more effectively downregulated MMP-9 and MMP-2 expression, as the important modulators of metastasis, compared to the controls. Conclusion Taken together, considering that exogenous overexpression of MIR-145 and hsa-let-7a showed cooperative anti-cancer effects on CRC cells, their combination may be considered as a novel therapeutic strategy for the treatment of CRC.
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Affiliation(s)
- Nazila Mozammel
- Department of Biology, Higher Education Institute of Rab‐Rashid, Tabriz, Iran
| | - Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Amini
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sheyda Jodeiry Zaer
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Maryam Tohidast
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Seyed Ali Rahmani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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4
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Roshani M, Molavizadeh D, Sadeghi S, Jafari A, Dashti F, Mirazimi SMA, Ahmadi Asouri S, Rajabi A, Hamblin MR, Anoushirvani AA, Mirzaei H. Emerging roles of miR-145 in gastrointestinal cancers: A new paradigm. Biomed Pharmacother 2023; 166:115264. [PMID: 37619484 DOI: 10.1016/j.biopha.2023.115264] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/25/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
Gastrointestinal (GI) carcinomas are a group of cancers affecting the GI tract and digestive organs, such as the gastric, liver, bile ducts, pancreas, small intestine, esophagus, colon, and rectum. MicroRNAs (miRNAs) are small functional non-coding RNAs (ncRNAs) which are involved in regulating the expression of multiple target genes; mainly at the post-transcriptional level, via complementary binding to their 3'-untranslated region (3'-UTR). Increasing evidence has shown that miRNAs have critical roles in modulating of various physiological and pathological cellular processes and regulating the occurrence and development of human malignancies. Among them, miR-145 is recognized for its anti-oncogenic properties in various cancers, including GI cancers. MiR-145 has been implicated in diverse biological processes of cancers through the regulation of target genes or signaling, including, proliferation, differentiation, tumorigenesis, angiogenesis, apoptosis, metastasis, and therapy resistance. In this review, we have summarized the role of miR-145 in selected GI cancers and also its downstream molecules and cellular processes targets, which could lead to a better understanding of the miR-145 in these cancers. In conclusion, we reveal the potential diagnostic, prognostic, and therapeutic value of miR-145 in GI cancer, and hope to provide new ideas for its application as a biomarker as well as a therapeutic target for the treatment of these cancer.
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Affiliation(s)
- Mohammad Roshani
- Internal Medicine and Gastroenterology, Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Danial Molavizadeh
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Sara Sadeghi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Ameneh Jafari
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Dashti
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Mohammad Ali Mirazimi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for BasicSciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Ali Rajabi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Ali Arash Anoushirvani
- Department of Internal Medicine, Firoozgar Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Hamed Mirzaei
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Internal Medicine, Firoozgar Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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5
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Wu Z, Fang ZX, Hou YY, Wu BX, Deng Y, Wu HT, Liu J. Exosomes in metastasis of colorectal cancers: Friends or foes? World J Gastrointest Oncol 2023; 15:731-756. [PMID: 37275444 PMCID: PMC10237026 DOI: 10.4251/wjgo.v15.i5.731] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/07/2023] [Accepted: 04/04/2023] [Indexed: 05/12/2023] Open
Abstract
Colorectal cancer (CRC), the third most common type of cancer worldwide, threaten human health and quality of life. With multidisciplinary, including surgery, chemotherapy and/or radiotherapy, patients with an early diagnosis of CRC can have a good prognosis. However, metastasis in CRC patients is the main risk factor causing cancer-related death. To elucidate the underlying molecular mechanisms of CRC metastasis is the difficult and research focus on the investigation of the CRC mechanism. On the other hand, the tumor microenvironment (TME) has been confirmed as having an essential role in the tumorigenesis and metastasis of malignancies, including CRCs. Among the different factors in the TME, exosomes as extracellular vesicles, function as bridges in the communication between cancer cells and different components of the TME to promote the progression and metastasis of CRC. MicroRNAs packaged in exosomes can be derived from different sources and transported into the TME to perform oncogenic or tumor-suppressor roles accordingly. This article focuses on CRC exosomes and illustrates their role in regulating the metastasis of CRC, especially through the packaging of miRNAs, to evoke exosomes as novel biomarkers for their impact on the metastasis of CRC progression.
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Affiliation(s)
- Zheng Wu
- Guangdong Provincial Key Laboratory for Diagnosis and Treatment of Breast Cancer, Cancer Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
| | - Ze-Xuan Fang
- Guangdong Provincial Key Laboratory for Diagnosis and Treatment of Breast Cancer, Cancer Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
| | - Yan-Yu Hou
- Guangdong Provincial Key Laboratory for Diagnosis and Treatment of Breast Cancer, Cancer Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
| | - Bing-Xuan Wu
- Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
| | - Yu Deng
- Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
| | - Hua-Tao Wu
- Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
| | - Jing Liu
- Guangdong Provincial Key Laboratory for Diagnosis and Treatment of Breast Cancer, Cancer Hospital of Shantou University Medical College, Shantou 515041, Guangdong Province, China
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6
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Current Progress of EMT: A New Direction of Targeted Therapy for Colorectal Cancer with Invasion and Metastasis. Biomolecules 2022; 12:biom12121723. [PMID: 36551152 PMCID: PMC9775097 DOI: 10.3390/biom12121723] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/12/2022] [Accepted: 11/13/2022] [Indexed: 11/23/2022] Open
Abstract
Colorectal cancer (CRC) is a common malignant tumor with a high frequency of recurrence and metastasis, which are the major causes of death in patients. The prerequisite for the invasion and metastasis is the strong mobility of CRC cells to transport far away from the original site to the distant organs and tissues, where they settle down and proliferate. It was reported that the epithelial-mesenchymal transition (EMT) is involved in the occurrence and development of various tumors in the entire process of tumor invasion and metastasis. Therefore, as a vital factor for the biological characteristics of tumor cells, EMT markers may serve as prognostic predictors and potential therapeutic targets in CRC. This article mainly reviews the current status of CRC with metastasis, the studies of EMT, the possible relationship of EMT with CRC, as well as the potential targeted therapy.
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7
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Cheng X, Shen T, Liu P, Fang S, Yang Z, Li Y, Dong J. mir-145-5p is a suppressor of colorectal cancer at early stage, while promotes colorectal cancer metastasis at late stage through regulating AKT signaling evoked EMT-mediated anoikis. BMC Cancer 2022; 22:1151. [DOI: 10.1186/s12885-022-10182-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 10/12/2022] [Indexed: 11/09/2022] Open
Abstract
Abstract
Background:
miR-145-5P is generally considered as a tumor suppressor at early stage of colorectal cancer, but up-regulation occurs in the progressive and later stages which is associated with metastasis, indicating miR-145-5p may play dual role in colorectal cancer (CRC). To explore the detailed mechanism of miR-145-5p in carcinogenic is of importance.
Methods:
The expression pattern of miR-145-5p in CRC patients was downloaded from TCGA database, and the probable mechanism involved in the carcinogenic effect of miR-145-5p was predicted by bioinformatics analysis. Then, interference of miR-145-5p on SW480 and SW620 cells was conducted, and the influences on tumor cell viability, invasion ability, epithelial-mesenchymal transition (EMT), anoikis, and relative protein expression were examined respectively.
Results:
A total of 522 CRC patients’ data indicated that miR-145-5p expression was significantly higher in metastatic CRC than that in non-metastatic CRC, and higher expression of miR-145-5p was correlate with worse prognosis. Overexpression of miR-145-5P-5p enhanced the proliferation and invasion ability of SW620, but inhibited them in SW480. EMT was induced in SW620 after miR-145-5p overexpression and mesenchymal–epithelial transition (MET) was induced in SW480, resulted in the decreased apoptotic rate in SW620 and elevated apoptotic rate in SW480 respectively. Western blot results showed that AKT signaling pathway was involved in the miR-145-5p evoked EMT-mediated anoikis process in SW620 and SW480 cells.
Conclusion:
miR-145-5p is a tumor suppressor at early stage of CRC, and an oncogene at advanced stage of CRC. AKT signaling evoked EMT-mediated anoikis might be the pathway by which miR-145-5P regulates CRC cell invasion and metastasis.
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8
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Bai Y, Li L, Zhang Z. Linc00883 affects colorectal cancer through miR-577/FKBP14 axis: a novel mechanism for regulating colorectal cancer cell proliferation, invasion, and migration. Cell Cycle 2022; 21:2403-2416. [PMID: 35833665 DOI: 10.1080/15384101.2022.2097824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are relevant to the development of human cancers. Here, we aimed to investigate the role and mechanism of Linc00883 in the proliferation, invasion, and migration of colorectal cancer (CRC) cells. CRC cell lines SW480 and LoVo were applied as in vitro models in this study. Quantitative real-time PCR was applied to measure Linc00883, miR-577, and FKBP14 expressions. Cell Counting Kit-8, transwell, and wound-healing assays were carried out to confirm the function of Linc00883. Western blot was applied to detect the protein levels of the epithelial-mesenchymal transition-related proteins E-cadherin, vimentin, fibronectin, and α-SMA. RNA immunoprecipitation (RIP) and RNA pull-down experiments were performed to confirm the relationship between Linc00883 and miR-577. Linc00883 expression was elevated in CRC tissues and cells, and the patients with high expression of Linc00883 were related to a low survival rate and prone to distant metastasis. Moreover, we corroborated that Linc00883 and miR-577, miR-577 and FKBP14 are bound to each other. Linc00883 was negatively correlated with miR-577, and miR-577 was also negatively correlated with FKBP14. Furthermore, interference with Linc00883 restrained the proliferation, invasion, and migration of CRC cells through the miR-577/FKBP14 axis. In vivo studies also clarified that Linc00883 facilitated the growth of CRC tumors and the epithelial-mesenchymal transition (EMT) of CRC. Our results demonstrated that Linc00883 facilitated the proliferation, invasion, and migration of CRC cells by regulating the miR-577/FKBP14 axis.
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Affiliation(s)
- Yang Bai
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Ling Li
- Department of Ultrasound, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Henan, China
| | - Zhiyong Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Henan, China
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9
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Staiteieh SA, Akil L, Al Khansa R, Nasr R, Al Sagheer Z, Houshaymi B, Merhi RA. Study of microRNA expression profiling as biomarkers for colorectal cancer patients in Lebanon. Mol Clin Oncol 2022; 16:39. [PMID: 35003737 DOI: 10.3892/mco.2021.2473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 09/15/2021] [Indexed: 11/05/2022] Open
Abstract
The high incidence and mortality rates of colorectal cancer (CRC) reveal its hazardous effect globally. Thus, it is important to diagnose CRC at an early stage to decrease its burden and improve survival rates. Previous studies have investigated the role of short non-coding microRNAs (miRNAs or miRs) in numerous types of cancer, including CRC. Previous studies have been performed to investigate the role of miRNAs as biomarkers in diagnosis, prognosis and prediction of CRC development. The aim of the present retrospective study was to identify the expression levels of miR-31, miR-145, miR-146b and miR-186 to highlight their role in CRC diagnosis and progression at different stages of the disease (precancerous polyp, adenoma and adenocarcinoma) in a Lebanese population. The expression levels of miRNAs was revealed using TaqMan reverse transcription-quantitative PCR on formalin-fixed paraffin-embedded tissues from Lebanese patients at different stages; their diagnostic value was determined using a receiver operating characteristics curve. Compared with healthy controls, miR-31 was upregulated (P<0.0001) at all stages. By contrast, miR-145, miR-186, and miR-146b were significantly downregulated at all stages (P<0.0001, P=0.0009 and P=0.0241, respectively). Of the four miRNAs studied, miR-31 and miR-145 were identified as potentially useful diagnostic factors, with an area under the curve of 0.7771 and 0.8269 and diagnostic accuracy of 71.3 and 78.5%, respectively. These data suggested that miR-31 and miR-145, upon further clinical validation, may be used as potential diagnostic biomarkers for the early detection of CRC at the polyp stage.
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Affiliation(s)
- Soumaiah Abou Staiteieh
- Genomics and Surveillance Biotherapy Laboratory, Biology Department, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath 1003, Lebanon
| | - Laila Akil
- Anatomy and Pathology Department, Bahman Hospital, Haret Hreik, Mount Lebanon 128-25, Lebanon
| | - Rawan Al Khansa
- Genomics and Surveillance Biotherapy Laboratory, Biology Department, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath 1003, Lebanon
| | - Rihab Nasr
- Department of Anatomy, Cell Biology, and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Zainab Al Sagheer
- Applied Mathematics Department, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath 1003, Lebanon
| | - Bilal Houshaymi
- Genomics and Surveillance Biotherapy Laboratory, Biology Department, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath 1003, Lebanon
| | - Raghida Abou Merhi
- Genomics and Surveillance Biotherapy Laboratory, Biology Department, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath 1003, Lebanon
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10
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Heawchaiyaphum C, Ekalaksananan T, Patarapadungkit N, Worawichawong S, Pientong C. Epstein-Barr Virus Infection Alone or Jointly with Human Papillomavirus Associates with Down-Regulation of miR-145 in Oral Squamous-Cell Carcinoma. Microorganisms 2021; 9:microorganisms9122496. [PMID: 34946098 PMCID: PMC8708579 DOI: 10.3390/microorganisms9122496] [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: 11/04/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 11/28/2022] Open
Abstract
Down-regulation of tumor-suppressive miR-145 has been reported in various malignancies, including oral squamous-cell carcinoma (OSCC) that is influenced by several factors, including Epstein-Barr virus (EBV) and human papillomavirus (HPV). Oncoviruses can modulate the expression of cellular microRNAs. Therefore, we sought to investigate the association of miR-145 down-regulation in OSCC with EBV and/or HPV infection, which might be a possible mechanism of these viruses in oral carcinogenesis. Herein, prevalence of EBV, HPV, and their co-infection was significantly higher in tumors than normal tissues of OSCC. EBV infection alone or jointly with HPV was significantly associated with down-regulation of miR-145 in tumors compared with normal adjacent tissues. In cell lines infected with EBV or HPV, miR-145 was also down-regulated. Consistently, methylation of miR-145 was significantly greater in tumors, and well correlated with increased expression of DNMT3B, which was influenced by infection with EBV and HPV. In cell lines, only EBV infection was associated with increased expression of DNMT3B. Moreover, the level of EBV-LMP1 mRNA in tumors was negatively correlated with miR-145 and positively correlated with DNMT3B. Therefore, EBV alone or jointly with HPV is associated with down-regulation of miR-145 and may influence on miR-145 promoter methylation through the induction of DNMT3B in OSCC.
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Affiliation(s)
- Chukkris Heawchaiyaphum
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (C.H.); (T.E.)
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (C.H.); (T.E.)
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Natcha Patarapadungkit
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand;
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Suchin Worawichawong
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand;
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (C.H.); (T.E.)
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand;
- Correspondence:
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11
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Ramorola BR, Goolam-Hoosen T, Alves de Souza Rios L, Mowla S. Modulation of Cellular MicroRNA by HIV-1 in Burkitt Lymphoma Cells-A Pathway to Promoting Oncogenesis. Genes (Basel) 2021; 12:genes12091302. [PMID: 34573283 PMCID: PMC8468732 DOI: 10.3390/genes12091302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/12/2021] [Accepted: 08/20/2021] [Indexed: 11/16/2022] Open
Abstract
Viruses and viral components have been shown to manipulate the expression of host microRNAs (miRNAs) to their advantage, and in some cases to play essential roles in cancer pathogenesis. Burkitt lymphoma (BL), a highly aggressive B-cell derived cancer, is significantly over-represented among people infected with HIV. This study adds to accumulating evidence demonstrating that the virus plays a direct role in promoting oncogenesis. A custom miRNA PCR was used to identify 32 miRNAs that were differently expressed in Burkitt lymphoma cells exposed to HIV-1, with a majority of these being associated with oncogenic processes. Of those, hsa-miR-200c-3p, a miRNA that plays a crucial role in cancer cell migration, was found to be significantly downregulated in both the array and in single-tube validation assays. Using an in vitro transwell system we found that this downregulation correlated with significantly enhanced migration of BL cells exposed to HIV-1. Furthermore, the expression of the ZEB1 and ZEB2 transcription factors, which are promotors of tumour invasion and metastasis, and which are direct targets of hsa-miR-200c-3p, were found to be enhanced in these cells. This study therefore identifies novel miRNAs as role players in the development of HIV-associated BL, with one of these miRNAs, hsa-miR-200c-3p, being a candidate for further clinical studies as a potential biomarker for prognosis in patients with Burkitt lymphoma, who are HIV positive.
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12
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Ma Y, Cao X, Shi G, Shi T. MiRNA-145 and Its Direct Downstream Targets in Digestive System Cancers: A Promising Therapeutic Target. Curr Pharm Des 2021; 27:2264-2273. [PMID: 33121400 DOI: 10.2174/1381612826666201029095702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
MicroRNAs (miRNAs) play a vital role in the onset and development of many diseases, including cancers. Emerging evidence shows that numerous miRNAs have the potential to be used as diagnostic biomarkers for cancers, and miRNA-based therapy may be a promising therapy for the treatment of malignant neoplasm. MicroRNA-145 (miR-145) has been considered to play certain roles in various cellular processes, such as proliferation, differentiation and apoptosis, via modulating the expression of direct target genes. Recent reports show that miR-145 participates in the progression of digestive system cancers, and plays crucial and novel roles in cancer treatment. In this review, we summarize the recent knowledge concerning the function of miR-145 and its direct targets in digestive system cancers. We discuss the potential role of miR-145 as a valuable biomarker for digestive system cancers and how miR-145 regulates these digestive system cancers via different targets to explore the potential strategy of targeting miR-145.
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Affiliation(s)
- Yini Ma
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Xiu Cao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Guojuan Shi
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Tianlu Shi
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
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Wang Z, Pei H, Liang H, Zhang Q, Wei L, Shi D, Chen Y, Zhang J. Construction and Analysis of a circRNA-Mediated ceRNA Network in Lung Adenocarcinoma. Onco Targets Ther 2021; 14:3659-3669. [PMID: 34135596 PMCID: PMC8197624 DOI: 10.2147/ott.s305030] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/14/2021] [Indexed: 01/22/2023] Open
Abstract
Background Circular RNAs (circRNAs), a new class of regulatory noncoding RNAs, are involved in gene regulation and may play a role in cancer development. The aim of this study was to identify circRNAs involved in lung adenocarcinoma (LUAD) using bioinformatics analysis. Methods CircRNA (GSE101684, GSE101586), miRNA (GSE135918), and mRNA (GSE130779) microarray datasets were downloaded from the Gene Expression Omnibus (GEO) database to identify differentially expressed circRNAs (DECs), miRNAs (DEMs), and mRNAs (DEGs) in LUAD. Circinteractome and StarBase were used to predict miRNAs and mRNAs, respectively. A circRNA-miRNA-mRNA-ceRNA network was constructed. Patient survival was analyzed using UALCAN, and a sub-network was established. Real-time quantitative PCR (qRT-PCR) was used to verify the expressed of DECs between LUAD tissues and paired adjacent normal tissues. Results Hsa_circ_0072088 was identified as a differentially expressed (upregulated) circRNA in the two datasets. Intersection analysis identified hsa-miR-532-3p and hsa-miR-942 as the two miRNAs with the highest potential for binding to hsa_circ_0072088. Differential expression analysis and target gene prediction were performed to build a ceRNA network of hsa_circ_0072088 using Circinteractome/StarBase 3.0. Intersection analysis showed that TMEM52, IL24, POF1B, KIF1A, NHS, LBH, HIST2H2BE, ABCC3, PYCR1, CD79A, IGF2BP3, ANKRD17, GTSE1, MKI67, CLSPN, PLAU, LUC7L, MAGIX, GPATCH4, and ABAT were potential downstream mRNAs. The association between the expression level of 20 DEGs and LUAD patient survival was analyzed using UALCAN and GEPIA, which showed that IGF2BP3, MKI67, CD79A, and ABAT were related to patient survival. Hsa_circ_0072088 was verified upregulated by qRT-PCR. Conclusion The circRNA hsa_circ_0072088, the DEMs (hsa-miR-532-3p and hsa-miR-942-5p), and the DEGs (IGF2BP3, MKI67, CD79A, and ABAT) may serve as prognostic markers in LUAD.
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Affiliation(s)
- Zhaojun Wang
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Hanzhong Pei
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Hongsen Liang
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Qiwei Zhang
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Li Wei
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Donglei Shi
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Yun Chen
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
| | - Junhang Zhang
- Department of Thoracic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, People's Republic of China
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Zhai X, Li LS, Zhou YD, Ji WY, Chen H, Xiao H, Liang P. EZH2 regulates the malignancy of human glioblastoma cells via modulation of Twist mRNA stability. Eur J Pharmacol 2021; 904:174177. [PMID: 34015321 DOI: 10.1016/j.ejphar.2021.174177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 12/15/2022]
Abstract
Glioblastoma multiforme (GBM) is a lethal primary brain tumor with poor survival lifespan and dismal outcome. However, the effects and mechanisms of epigenetic factors on the development of GBM were still not well illustrated. We found that expression of enhancer of zeste homolog 2 (EZH2), which can catalyze histone H3K27me3 to modulate gene expression, was increased in GBM cells. Knockdown of EZH2 can suppress proliferation and migration, while increase temozolomide (TMZ) sensitivity, of GBM cells. Further, knockdown of EZH2 or its specific inhibitor GSK126 can decrease expression of Twist, while over expression of Twist can reverse si-EZH2-suppressed malignancy of GBM cells. Mechanistically, EZH2 can positively regulate mRNA stability of Twist1 mRNA. Further, miR-206, which can bind with 3'UTR of Twist1 mRNA, was involved in EZH2-regulated mRNA stability of Twist1. Collectively, our data suggest that EZH2 might be a potential target for GBM treatment. Further, miR-206/Twist axis is involved in EZH2-regulated malignancy of GBM cells.
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Affiliation(s)
- Xuan Zhai
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Lu-Sheng Li
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Yu-Dong Zhou
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Wen-Yuan Ji
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Hui Chen
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Han Xiao
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Ping Liang
- Department of Neurosurgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400010, China.
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15
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Huang YN, Xu YY, Ma Q, Li MQ, Guo JX, Wang X, Jin X, Shang J, Jiao LX. Dextran Sulfate Effects EMT of Human Gastric Cancer Cells by Reducing HIF-1α/ TGF-β. J Cancer 2021; 12:3367-3377. [PMID: 33976746 PMCID: PMC8100798 DOI: 10.7150/jca.55550] [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] [Received: 11/06/2020] [Accepted: 03/23/2021] [Indexed: 01/10/2023] Open
Abstract
The peritoneal implant metastasis is one of the main pathway and main cause for high mortality for gastric cancer metastasis. Researchs show that epithelial-mesenchymal transition (EMT) playing essential role in modulating gastric cancer metastasis, and the expression of hypoxia inducible factor-1α (HIF-1α) can promote EMT in tumor cells. This research aims to explore the influence and mechanism of Dextran Sulfate (DS) affecting EMT of human gastric cancer. In the present study, we found that DS can enter into the cytoplasm and function in it. Inhibition of HIF-1α or DS significantly inhibit the migration and invasion of human gastric cancer cells, and decrease the mRNA and protein expressions of HIF-1α, matrix metalloproteinase-2 (MMP-2), transforming growth factor-β (TGF-β), Twist and N-cadherin (N-cad), rise E-cadherin (E-cad) expression, DS with HIF-1α knockdown has a stronger effect. In vivo studies indicated that compared with using DS or HIF-1α knockdown alone, DS with HIF-1α knockdown can better suppress the volume and number of metastatic tumors, and reduce the mRNA and protein expressions of HIF-1α, MMP-2, TGF-β, Twist and N-cad in metastatic tumor tissues of nude mice. We further demonstrated that the expression of HIF-1α, MMP-2, TGF-β , Twist and N-cad were higher in well and poorly differentiated gastric cancer than paracancerous tissue, and poorly differentiated gastric cancer were even higher, while E-cad expression was opposite. Taken together, this study shows that DS can interfere the expression of HIF-1α, thereby inhibiting TGF-β-mediated EMT of gastric cancer cells, and demonstrated a promising application of DS in gastric cancer therapy.
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Affiliation(s)
- Yun-Ning Huang
- Department of Gastrointestinal Surgery, The Affiliated People's Hospital of Ningxia Medical University, Yinchuan, Ningxia , P.R. China
| | - Yuan-Yi Xu
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Qian Ma
- College of Life Sciences, Ningxia University, Yinchuan , Ningxia, P.R. China.,College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Meng-Qi Li
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Jia-Xin Guo
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Xiaofei Wang
- Department of Pathology,North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, P.R. China
| | - Xiu Jin
- Department of Pathology, Affiliated Hospital of Jining Medical University, Jining, Shandong, P.R. China
| | - Jing Shang
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Long-Xing Jiao
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
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16
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Yan Z, Hong S, Song Y, Bi M. microR-4449 Promotes Colorectal Cancer Cell Proliferation via Regulation of SOCS3 and Activation of STAT3 Signaling. Cancer Manag Res 2021; 13:3029-3039. [PMID: 33854373 PMCID: PMC8039016 DOI: 10.2147/cmar.s266153] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 10/21/2020] [Indexed: 12/28/2022] Open
Abstract
Introduction Dysregulation of microRNAs (miRNAs), which represented a critical level of gene expression modulation, regulated the development of colorectal cancer. However, the functions of numerous miRNAs remain unclear in colorectal cancer. Methods The microarray data of GSE115513 were retrieved; subsequently, the differentially expressed miRNAs between 411 colon tumors and 381 normal colon mucosa were analyzed. Real-time PCR (RT-qPCR) and bioinformatic analysis were applied to examine the expression of miR-4449 in collected colorectal tumors and published microarray data. The activity of signal transducer and activator of transcription 3 (STAT3) signaling was detected by Western blotting and RT-qPCR. Dual-Luciferase assay and bioinformatic analysis were used to confirm the interaction between suppressor of cytokine signaling 3 (SOCS3) and miR-4449. Loss of function and rescue assays were performed to study the involvement of miR-4449 and SOCS3 in cell proliferation and apoptosis of colorectal cancer. Results Herein, we identified miR-4449 as a novel upregulated miRNA in colorectal cancer. Our data suggested that miR-4449 downregulation blocked the proliferation of colorectal cancer cells accompanied with the elevation of cell apoptosis. Decreased expression of miR-4449 led to inactivation of STAT3 pathway as indicated by dephosphorylation of STAT3 and downregulation of STAT3 target genes, including vascular endothelial growth factor (VEGF), c-Myc, baculovirus inhibitor of apoptosis containing 5 (BIRC5). Furthermore, SOCS3, a negative regulator of STAT3 pathway, was found to be a target gene of miR-4449. The data also showed that the inactivation of STAT3 pathway by miR-4449 inhibitor was realized by targeting SOCS3. Moreover, the biological function of miR-4449 downregulation was reversed by SOCS3 knockdown in colorectal cancer cells. Conclusion The current study revealed that miR-4449 promoted cell proliferation of colorectal cancer and was a promising potential therapeutic target for colorectal cancer.
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Affiliation(s)
- Zhenkun Yan
- Department of Endoscopy Center, The Third Hospital of Jilin University, Changchun, Jilin, 130022, People's Republic of China
| | - Sen Hong
- Department of Colorectal and Anal Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130022, People's Republic of China
| | - Yumei Song
- Department of Thoracic Oncology, Tumor Hospital of Jilin Province, Changchun, Jilin, 130022, People's Republic of China
| | - Miaomiao Bi
- Department of Ophthalmology, The Third Hospital of Jilin University, Changchun, Jilin, 130022, People's Republic of China
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17
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Xin Z, Tong Z, Tan J, Liu C. MicroRNA-145-5p aggravates cell apoptosis and oxidative stress in tongue squamous cell carcinoma. Exp Ther Med 2021; 21:373. [PMID: 33732346 PMCID: PMC7903421 DOI: 10.3892/etm.2021.9804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 12/08/2020] [Indexed: 12/11/2022] Open
Abstract
MicroRNA-145-5p (miR-145-5p) is expressed in a variety of tumors, but the mechanism underlying miR-145-5p in tongue squamous cell carcinoma (TSCC) is not fully understood. Therefore, the present study investigated the role of miR-145-5p in TSCC. miR-145-5p expression levels in TSCC tissues were analyzed via reverse transcription-quantitative PCR. miR-145-5p mimics and inhibitors were transfected into SCC9 and Cal27 cells. The stability and invasion of SCC9 and Cal27 cells were analyzed by performing Transwell assays, while PI and Annexin V were used to detect cell apoptosis. Oxidative stress levels of superoxide dismutase, malondialdehyde and glutathione peroxidase were measured via ELISA. PI3K/AKT signaling pathway-associated protein expression levels were evaluated using western blotting. miR-145-5p was consistently downregulated in TSCC tissues compared with healthy tissues. miR-145-5p overexpression decreased cell stability and invasion, but promoted cell apoptosis and oxidative stress. In addition, PI3K, AKT and phosphorylated-AKT expression levels were significantly diminished. The results indicated that miR-145-5p overexpression inhibited SCC9 and Cal27 cell stability and invasion, promoted SCC9 and Cal27 cell apoptosis and oxidative stress, and inhibited the PI3K/AKT signaling pathway. The results of the present study suggested that miR-145 may serve as a molecular marker of TSCC.
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Affiliation(s)
- Zengxi Xin
- Department of Prosthodontics, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Zhou Tong
- Department of Oral and Maxillofacial Surgery, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Jingyu Tan
- Department of Stomatology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Changfu Liu
- Department of Oral and Maxillofacial Surgery, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
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18
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Zhang N, Hu X, Du Y, Du J. The role of miRNAs in colorectal cancer progression and chemoradiotherapy. Biomed Pharmacother 2021; 134:111099. [DOI: 10.1016/j.biopha.2020.111099] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/17/2020] [Accepted: 12/02/2020] [Indexed: 02/07/2023] Open
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Zhao J, Zhou K, Ma L, Zhang H. MicroRNA-145 overexpression inhibits neuroblastoma tumorigenesis in vitro and in vivo. Bioengineered 2020; 11:219-228. [PMID: 32083506 PMCID: PMC7039631 DOI: 10.1080/21655979.2020.1729928] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Neuroblastoma (NB) is responsible for 15% of all childhood cancer deaths. Despite advances in treatment and disease management, the overall 5-year survival rates remain poor in high-risk disease (25-40%). It is well known that miR-145 functions as a tumor suppressor in several types of cancer. However, the impact of miR-145 on NB is still ambiguous. Our aim was to investigate the potential tumor suppressive role and mechanisms of miR-145 in high-risk neuroblastoma. Expression levels of miR-145 in tissues and cells were determined using RT-qPCR. The effect of miR-145 on cell viability was evaluated using MTT assays, apoptosis levels were determined using TUNEL staining, and the MTDH protein expression was determined using western blot and RT-PCR. Luciferase reporter plasmids were constructed to confirm direct targeting for MTDH. The results showed that miR-145 expression was significantly lower in high-risk MYCN amplified (MNA) tumors and low miR-145 expression was associated with worse EFS and OS in our cohort. Over-expression of miR-145 reduced cell viability and increased apoptosis in SH-SY-5Y cells. We identified MTDH as a direct target for miR-145 in SH-SY-5Y cells. Targeting MTDH has the similar results as miR-145 overexpression. Our findings suggest that low miR-145 expression was associated with poor prognosis in patients with NB, and the overexpression of miR-145 inhibited NB cells growth by down-regulating MTDH, thus providing a potential target for the development of microRNA-based approach for NB therapy.
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Affiliation(s)
- Jing Zhao
- Department of Pediatric Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Kai Zhou
- Urology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Liang Ma
- Child Health Division, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Huanyu Zhang
- Department of Pediatric Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Gerasymchuk D, Hubiernatorova A, Domanskyi A. MicroRNAs Regulating Cytoskeleton Dynamics, Endocytosis, and Cell Motility-A Link Between Neurodegeneration and Cancer? Front Neurol 2020; 11:549006. [PMID: 33240194 PMCID: PMC7680873 DOI: 10.3389/fneur.2020.549006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 10/06/2020] [Indexed: 12/13/2022] Open
Abstract
The cytoskeleton is one of the most mobile and complex cell structures. It is involved in cellular transport, cell division, cell shape formation and adaptation in response to extra- and intracellular stimuli, endo- and exocytosis, migration, and invasion. These processes are crucial for normal cellular physiology and are affected in several pathological processes, including neurodegenerative diseases, and cancer. Some proteins, participating in clathrin-mediated endocytosis (CME), play an important role in actin cytoskeleton reorganization, and formation of invadopodia in cancer cells and are also deregulated in neurodegenerative disorders. However, there is still limited information about the factors contributing to the regulation of their expression. MicroRNAs are potent negative regulators of gene expression mediating crosstalk between different cellular pathways in cellular homeostasis and stress responses. These molecules regulate numerous genes involved in neuronal differentiation, plasticity, and degeneration. Growing evidence suggests the role of microRNAs in the regulation of endocytosis, cell motility, and invasiveness. By modulating the levels of such microRNAs, it may be possible to interfere with CME or other processes to normalize their function. In malignancy, the role of microRNAs is undoubtful, and therefore changing their levels can attenuate the carcinogenic process. Here we review the current advances in our understanding of microRNAs regulating actin cytoskeleton dynamics, CME and cell motility with a special focus on neurodegenerative diseases, and cancer. We investigate whether current literature provides an evidence that microRNA-mediated regulation of essential cellular processes, such as CME and cell motility, is conserved in neurons, and cancer cells. We argue that more research effort should be addressed to study the neuron-specific functions on microRNAs. Disease-associated microRNAs affecting essential cellular processes deserve special attention both from the view of fundamental science and as future neurorestorative or anti-cancer therapies.
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Affiliation(s)
- Dmytro Gerasymchuk
- Institute of Biotechnology, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | | | - Andrii Domanskyi
- Institute of Biotechnology, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
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21
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Wen XQ, Qian XL, Sun HK, Zheng LL, Zhu WQ, Li TY, Hu JP. MicroRNAs: Multifaceted Regulators of Colorectal Cancer Metastasis and Clinical Applications. Onco Targets Ther 2020; 13:10851-10866. [PMID: 33149603 PMCID: PMC7602903 DOI: 10.2147/ott.s265580] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/12/2020] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is the third-commonest malignant cancer, and its metastasis is the major reason for cancer-related death. The process of metastasis is highly coordinated and involves a complex cascade of multiple steps. In recent years, miRNAs, as highly conserved, endogenous, noncoding, single-stranded RNA, has been confirmed to be involved in the development of various cancers. Considering that miRNA is also involved in a series of biological behaviors, regulating CRC occurrence and development, we review and summarize the role of miRNAs and related signaling pathways in several CRC-metastasis stages, including invasion and migration, mobility, metabolism, epithelial-mesenchymal transition, tumor-microenvironment communication, angiogenesis, anoikis, premetastatic-niche formation, and cancer stemness. In addition, we review the application of miRNAs as diagnostic CRC markers and in clinical treatment resistance. This review can contribute to understanding of the mechanism of miRNAs in CRC progression and provide a theoretical basis for clinical CRC treatment.
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Affiliation(s)
- Xiang-Qiong Wen
- Department of General Surgery, The First Affiliated Hospital of Nanchang University; Medical College of Nanchang University, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Xian-Ling Qian
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
- Department of Medical Imaging, Shanghai Medical College,Fudan University, Shanghai, 200032, People's Republic of China
| | - Huan-Kui Sun
- Department of General Surgery, The First Affiliated Hospital of Nanchang University; Medical College of Nanchang University, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Lin-Lin Zheng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University; Medical College of Nanchang University, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Wei-Quan Zhu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University; Medical College of Nanchang University, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Tai-Yuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University; Medical College of Nanchang University, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Jia-Ping Hu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University; Medical College of Nanchang University, Nanchang, Jiangxi, 330006, People’s Republic of China
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Yu N, Hu T, Yang H, Zhang L, Song Q, Xiang F, Yang X, Li Y. Twist1 Contributes to the Maintenance of Some Biological Properties of Dermal Papilla Cells in vitro by Forming a Complex With Tcf4 and β-Catenin. Front Cell Dev Biol 2020; 8:824. [PMID: 32974352 PMCID: PMC7466560 DOI: 10.3389/fcell.2020.00824] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 08/03/2020] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE During hair follicle regeneration, hair follicle stem cells (HFSCs) are regulated by signals from dermal papilla cells (DPCs). Previously we found that Tcf4 could promote the proliferation of DPCs. In this study, we focused on whether and how the biological properties of Tcf4-induced DPCs were regulated by Twist1. METHODS Twist1 was overexpressed or knocked down in DPCs following different adenovirus or lentivirus infection. Phase-contrast microscopy was used to observe the agglutinative growth of DPCs. The CCK-8 assay was used to test the proliferation of DPCs. Western blot and qPCR experiments were used to determine the expression of HGF, IGF-1, VEGF, c-myc, survivin, and CyclinD1 in DPCs. ELISAs were used to test the growth factors secreted by DPCs. Conditional medium culture was used to detect the inductive ability of DPCs. Co-immunoprecipitation and immunofluorescence were used to test the binding of Twist1, Tcf4, and β-catenin in DPCs. Immunofluorescence was also used to test the expression of Twist1, Tcf4, and KRT15 in hair follicles. RESULTS Twist1 induced DPC agglutinative growth and proliferation. Twist1 upregulated the expression of downstream target genes downstream of Tcf4, c-myc, survivin, in Tcf4-induced DPCs, as well as the expression and secretion of growth factors HGF, IGF-1, VEGF, which had the ability to induce hair follicle growth. The conditional medium from Twist1-treated DPCs increased the expression of KRT40 and MSX2 in HaCaT cells. Twist1 and Tcf4 co-localized in DPCs both in vitro and in vivo. Anti-Twist1 precipitated Tcf4 and β-catenin. CONCLUSION These results indicate that Tcf4 and Twist1 play a synergistic role in regulating the hair follicle induction ability of DPCs. Twist1 functions by forming a ternary complex with Tcf4 and β-catenin. Thus, we report new data that elucidate whether and how Twist1 regulates some biological properties of DPCs.
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Affiliation(s)
- Nanlan Yu
- Department of Dermatology, The First Affiliated Hospital of the Army Medical University, Chongqing, China
| | - Tianxing Hu
- Department of Dermatology, The First Affiliated Hospital of the Army Medical University, Chongqing, China
- Department of Cell Biology, Army Medical University, Chongqing, China
| | - Haichao Yang
- Department of Dermatology, The First Affiliated Hospital of the Army Medical University, Chongqing, China
| | - Lian Zhang
- Department of Dermatology, The First Affiliated Hospital of the Army Medical University, Chongqing, China
| | - Qin Song
- Department of Dermatology, The First Affiliated Hospital of the Army Medical University, Chongqing, China
| | - Fei Xiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Institute of Burn Research, Army Medical University, Chongqing, China
| | - Xichuan Yang
- Department of Dermatology, The First Affiliated Hospital of the Army Medical University, Chongqing, China
| | - Yuhong Li
- Department of Cell Biology, Army Medical University, Chongqing, China
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Baudet S, Bécret J, Nicol X. Approaches to Manipulate Ephrin-A:EphA Forward Signaling Pathway. Pharmaceuticals (Basel) 2020; 13:ph13070140. [PMID: 32629797 PMCID: PMC7407804 DOI: 10.3390/ph13070140] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/19/2020] [Accepted: 06/28/2020] [Indexed: 02/07/2023] Open
Abstract
Erythropoietin-producing hepatocellular carcinoma A (EphA) receptors and their ephrin-A ligands are key players of developmental events shaping the mature organism. Their expression is mostly restricted to stem cell niches in adults but is reactivated in pathological conditions including lesions in the heart, lung, or nervous system. They are also often misregulated in tumors. A wide range of molecular tools enabling the manipulation of the ephrin-A:EphA system are available, ranging from small molecules to peptides and genetically-encoded strategies. Their mechanism is either direct, targeting EphA receptors, or indirect through the modification of intracellular downstream pathways. Approaches enabling manipulation of ephrin-A:EphA forward signaling for the dissection of its signaling cascade, the investigation of its physiological roles or the development of therapeutic strategies are summarized here.
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Li X, Song Q, Guo X, Wang L, Zhang Q, Cao L, Ren Y, Wu X, Meng Z, Xu K. The Metastasis Potential Promoting Capacity of Cancer-Associated Fibroblasts Was Attenuated by Cisplatin via Modulating KRT8. Onco Targets Ther 2020; 13:2711-2723. [PMID: 32280245 PMCID: PMC7132007 DOI: 10.2147/ott.s246235] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/19/2020] [Indexed: 12/12/2022] Open
Abstract
Background Cancer-associated fibroblasts (CAFs) are an essential component of tumor microenvironment. They are attracting increasing attentions due to their crucial role in tumor growth, drug-resistance and metastasis. Cisplatin is a first-line chemotherapy drug applying in various types of cancer. There are intensive studies on cisplatin's effect on tumor cells, however, its effect on CAFs remains poorly understood. In the present study, we investigated the effect of cisplatin on CAFs. Methods Cell migration was detected by wound healing assay. Cell invasion was performed by the transwell assay. mRNA expression was detected by quantitative PCR, and protein expression was detected by Western blotting. Tumor growth was measured using BALB/c nude mice tumor models. Results Cisplatin attenuated the promoting capacity of CAFs on lung cancer cell migration and invasion, via suppressing CAFs' effect on metastasis-related genes including Twist1, vascular endothelial growth factor receptor (VEGFR), MMP2, and AKT signaling pathway. Keratin 8 (KRT8) was identified as a target of cisplatin. KRT8 upregulation in CAFs is responsible for the inhibitory effect of cisplatin on lung cancer cells metastasis potential through AKT pathway suppression. The stimulation of AKT by AKT activator SC79 reversed KRT8's effect on cell migration. Importantly, in vivo study also showed that CAFs enhanced tumor growth significantly, and cisplatin effectively abrogated the promoting effect of CAFs on tumor growth. Conclusion Our results revealed a novel mechanism that cisplatin attenuated the metastasis promoting effect of CAFs via KRT8/AKT signaling pathway. This finding highlights KRT8 in CAFs as a potential therapeutic candidate for metastasis treatment.
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Affiliation(s)
- Xueqin Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Qianqian Song
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Xueru Guo
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Limin Wang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Qicheng Zhang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Limin Cao
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Yinghui Ren
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Xiang Wu
- Core Facility Center, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Zhaowei Meng
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
| | - Ke Xu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, People's Republic of China
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25
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Ding B, Yao M, Fan W, Lou W. Whole-transcriptome analysis reveals a potential hsa_circ_0001955/hsa_circ_0000977-mediated miRNA-mRNA regulatory sub-network in colorectal cancer. Aging (Albany NY) 2020; 12:5259-5279. [PMID: 32221048 PMCID: PMC7138558 DOI: 10.18632/aging.102945] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/09/2020] [Indexed: 12/15/2022]
Abstract
Background: Circular RNAs (circRNAs), a novel class of non-coding RNAs, have been found to act as microRNA (miRNA) sponges and thus play key roles in biological processes and pathogenesis. However, studies regarding circRNAs in colorectal cancer (CRC) remain inadequate. Results: By differential expression analysis, 10 candidate circRNAs (6 upregulated and 4 downregulated circRNAs) were chosen. 9 of 10 circRNAs were available on CSCD and their structure showed the binding potential of miRNA. Intersection analysis revealed that miR-145-5p, miR-3127-5p, miR-761, miR-4766-3p, miR-135a-5p, miR-135b-5p, miR-374a-3p and miR-330-3p were 8 miRNAs with the most potential in binding circRNAs. Further expression validation and correlation analysis demonstrated hsa_circ_0001955/miR-145-5p and hsa_circ_0000977/miR-135b-5p axes as key pathways in CRC. Subsequently, target gene prediction, differential expression analysis, intersection analysis and correlation analysis showed that CDK6, MMP12 and RAB3IP were the three potential downstream targets of hsa_circ_0001955/miR-145-5p axis and FOXO1, MBNL1, MEF2C, RECK, PPM1E, TTLL7 and PCP4L1 were the seven potential downstream targets of hsa_circ_0000977/miR-135b-5p axis in CRC. Finally, we also confirmed that expression of hsa_circ_0001955 or hsa_circ_0000977 was significantly positively correlated with their individual targets in CRC. Conclusions: In the present work, we constructed a potential hsa_circ_0001955/hsa_circ_0000977-mediated circRNA-miRNA-mRNA regulatory network in CRC by a series of in silico analysis and experimental validation. Methods: Whole-transcriptome microarrays from CRC and matched normal samples were obtained from GEO. The structure of circRNA was identified by CSCD. starBase and miRNet were successively used to predict miRNA of circRNA and target gene of miRNA. Expression correlation between RNA-RNA interactions was assessed using GEO and TCGA data. Finally, a potential circRNA-miRNA-mRNA network was established based on competing endogenous RNA (ceRNA) hypothesis.
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Affiliation(s)
- Bisha Ding
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China.,Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Key Laboratory of Organ Transplantation, Hangzhou, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang Province, China
| | - Minya Yao
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Weimin Fan
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Key Laboratory of Organ Transplantation, Hangzhou, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang Province, China
| | - Weiyang Lou
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China.,Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Key Laboratory of Organ Transplantation, Hangzhou, Zhejiang Province, China.,Key Laboratory of Organ Transplantation, Hangzhou, Zhejiang Province, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang Province, China
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