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Hashemi M, Rashidi M, Hushmandi K, Ten Hagen TLM, Salimimoghadam S, Taheriazam A, Entezari M, Falahati M. HMGA2 regulation by miRNAs in cancer: affecting cancer hallmarks and therapy response. Pharmacol Res 2023; 190:106732. [PMID: 36931542 DOI: 10.1016/j.phrs.2023.106732] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
High mobility group A 2 (HMGA2) is a protein that modulates the structure of chromatin in the nucleus. Importantly, aberrant expression of HMGA2 occurs during carcinogenesis, and this protein is an upstream mediator of cancer hallmarks including evasion of apoptosis, proliferation, invasion, metastasis, and therapy resistance. HMGA2 targets critical signaling pathways such as Wnt/β-catenin and mTOR in cancer cells. Therefore, suppression of HMGA2 function notably decreases cancer progression and improves outcome in patients. As HMGA2 is mainly oncogenic, targeting expression by non-coding RNAs (ncRNAs) is crucial to take into consideration since it affects HMGA2 function. MicroRNAs (miRNAs) belong to ncRNAs and are master regulators of vital cell processes, which affect all aspects of cancer hallmarks. Long ncRNAs (lncRNAs) and circular RNAs (circRNAs), other members of ncRNAs, are upstream mediators of miRNAs. The current review intends to discuss the importance of the miRNA/HMGA2 axis in modulation of various types of cancer, and mentions lncRNAs and circRNAs, which regulate this axis as upstream mediators. Finally, we discuss the effect of miRNAs and HMGA2 interactions on the response of cancer cells to therapy. Regarding the critical role of HMGA2 in regulation of critical signaling pathways in cancer cells, and considering the confirmed interaction between HMGA2 and one of the master regulators of cancer, miRNAs, targeting miRNA/HMGA2 axis in cancer therapy is promising and this could be the subject of future clinical trial experiments.
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Affiliation(s)
- Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Timo L M Ten Hagen
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mojtaba Falahati
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
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Bai L, Dong K, Tong D, Shi X, Wei S, Cai Y. lncRNA HIT000218960 enhances resistance to 5‑fluorouracil by promoting HMGA2 and activating the AKT/mTOR/P70S6K pathway in gastric cancer cells. Exp Ther Med 2022; 24:527. [PMID: 35837027 DOI: 10.3892/etm.2022.11454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 07/28/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Li Bai
- Department of Gastroenterology, The 970th Hospital of The PLA Joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Kunbo Dong
- Department of Gastroenterology, The 970th Hospital of The PLA Joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Deyong Tong
- Department of Oncology, The 970th Hospital of The PLA Joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Xiuna Shi
- Department of Gastroenterology, The 970th Hospital of The PLA Joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Sirong Wei
- Department of Intervention, The 970th Hospital of The PLA Joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Yongguo Cai
- Department of Gastroenterology, The 970th Hospital of The PLA Joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
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De Luca F, Di Chio C, Zappalà M, Ettari R. Dihydrochalcones as antitumor agents. Curr Med Chem 2022; 29:5042-5061. [PMID: 35430969 DOI: 10.2174/0929867329666220415113219] [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: 08/05/2021] [Revised: 01/16/2022] [Accepted: 01/25/2022] [Indexed: 11/22/2022]
Abstract
Dihydrochalcones are a class of secondary metabolites, possessing several biological properties such as antitumor, antioxidant, antibacterial, antidiabetic, estrogenic, anti-inflammatory, antithrombotic, antiviral, neuroprotective and immunomodulator properties; therefore, they are currently considered promising candidates in the drug discovery process. This review intend to debate their pharmacological actions with a particular attention to their antitumor activity against a panel of cancer cell-lines and to the description of the inhibition mechanisms of cell proliferation such as the regulation of angiogenesis, apoptosis, etc etc.
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Affiliation(s)
- Fabiola De Luca
- Department of Chemical, Biological, Pharmaceutical and Environmental Chemistry, University of Messina, Italy
| | - Carla Di Chio
- Department of Chemical, Biological, Pharmaceutical and Environmental Chemistry, University of Messina, Italy
| | - Maria Zappalà
- Department of Chemical, Biological, Pharmaceutical and Environmental Chemistry, University of Messina, Italy
| | - Roberta Ettari
- Department of Chemical, Biological, Pharmaceutical and Environmental Chemistry, University of Messina, Italy
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Wei S, Dai S, Zhang C, Zhao R, Zhao Z, Song Y, Shan B, Zhao L. LncRNA NR038975, A Serum-Based Biomarker, Promotes Gastric Tumorigenesis by Interacting With NF90/NF45 Complex. Front Oncol 2021; 11:721604. [PMID: 34900675 PMCID: PMC8660099 DOI: 10.3389/fonc.2021.721604] [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: 06/07/2021] [Accepted: 10/20/2021] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer (GC) is one of the deadliest cancers, and long noncoding RNAs (lncRNAs) have been reported to be the important regulators during the occurrence and development of GC. The present study identified a novel and functional lncRNA in GC, named NR038975, which was confirmed to be markedly upregulated in the Gene Expression Profiling Interactive Analysis (GEPIA) dataset and our independent cohort of GC tissues. We firstly characterized the full-length sequence and subcellular location of NR038975 in GC cells. Our data demonstrated that upregulated NR038975 expression was significantly related to lymph node metastasis and TNM stage. In addition, knockdown of NR038975 inhibited GC cell proliferation, migration, invasion, and clonogenicity and vice versa. Mechanistically, RNA pull-down and mass spectrometry assays identified the NR038975-binding proteins and NF90/NF45 complex, and the binding was also confirmed by RNA immunoprecipitation and confocal experiments. We further demonstrated that genetic deficiency of NR038975 abrogated the interaction between NF45 and NF90. Moreover, NF90 increased the stability of NR038975. Thus, NR038975-NF90/NF45 will be an important combinational target of GC. Finally, we detected NR038975 in serum exosomes and serum of GC patients. Our results indicated that NR038975 was a biomarker for gastric tumorigenesis. The current study demonstrated that NR038975 is a novel lncRNA that is clinically and functionally engaged in GC progression and might be a novel diagnostic marker and potential therapeutic target.
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Affiliation(s)
- Sisi Wei
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Suli Dai
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Cong Zhang
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ruinian Zhao
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zitong Zhao
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yongmei Song
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Baoen Shan
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lianmei Zhao
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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Poursaleh A, Beigee FS, Esfandiari G, Najafi M. Adhesion of monocytes and endothelial cells isolated from the human aorta suppresses by miRNA-PEI particles. BMC Cardiovasc Disord 2021; 21:395. [PMID: 34399692 PMCID: PMC8369609 DOI: 10.1186/s12872-021-02203-2] [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: 06/14/2021] [Accepted: 08/07/2021] [Indexed: 12/31/2022] Open
Abstract
Background Knowledge of stenosis in coronary arteries requires an understanding of the cellular and molecular processes that occur throughout the leukocyte rolling process. In this study, the roles of miR-125a-5p and miR-495-3p were investigated on the adhesion of endothelial cells (ECs) isolated from the human aorta. Methods Human primary endothelial cells were obtained from the aorta of people who had died of brain death. Whole blood was used to isolate the monocytes. The miR-125 and miR-495 were predicted and transfected into ECs using Poly Ethylene Imine (PEI). The expression levels of adhesion molecules and monocyte recruitment were identified by the RT-qPCR technique and Leukocyte-Endothelial Adhesion Assay kit, respectively. Results The ICAM-1, ICAM-2 and VCAM-1 expression levels decreased significantly in the miR-495/PEI-transfected ECs (P < 0.05) while in the miR-125/PEI-transfected ECs only the ICAM-2 and ITGB-2 expression levels decreased significantly (P < 0.05) as compared to the miR-synthetic/PEI-transfected ECs. Furthermore, the monocyte adhesion was decreased in the miR-125 and miR-mix/PEI-transfected ECs as compared to the miR-synthetic/PEI-transfected ECs (P = 0.01 and P = 0.04, respectively). Conclusion According to the findings, the efficient relations between miR-125 and adhesion molecules may be responsible for the inhibition of monocyte rolling.
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Affiliation(s)
- Adeleh Poursaleh
- Biochemistry Department, Microbial Biotechnology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Farnaz Sadegh Beigee
- Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Golnaz Esfandiari
- Biochemistry Department, Microbial Biotechnology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Najafi
- Biochemistry Department, Microbial Biotechnology Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Dong K, Bai L, Tong D, Shi X, Wei S, Cai Y. Long non-coding RNA HIT000218960 is associated with poor prognosis in patients with gastric cancer. Exp Ther Med 2021; 22:694. [PMID: 34055048 PMCID: PMC8145346 DOI: 10.3892/etm.2021.10126] [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: 03/31/2020] [Accepted: 02/15/2021] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been indicated to have important roles in the development of malignant tumors. In the present study, the expression of HIT000218960 in gastric cancer (GC) tissues was assessed and its clinical significance was analyzed. It was revealed that HIT000218960 was highly expressed in GC tissues and HIT000218960 levels in GC tissues from 103 cases were positively correlated with high mobility group AT-hook 2 (HMGA2) mRNA expression. Furthermore, HIT000218960 was significantly associated with tumor diameter, TNM stage, histological grade, the number of lymph nodes with metastasis and HMGA2 expression in tumor tissues of patients with GC. The results of the univariate and multivariate Cox regression analysis indicated that HIT000218960 expression was a factor affecting the prognosis of patients with GC. In addition, patients with GC with lower HIT000218960 or HMGA2 expression had more favorable 3-year survival, while HIT000218960 expression did not affect the 3-year overall survival of patients with GC with different levels of HMGA2 expression. In conclusion, HIT000218960 was highly expressed in patients with GC and was related to poor prognosis.
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Affiliation(s)
- Kunbo Dong
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Li Bai
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Deyong Tong
- Department of Oncology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Xiuna Shi
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Sirong Wei
- Department of Intervention, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Yongguo Cai
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
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The utility of high-mobility group A2 overexpression for predicting the prognosis of gastric cancer patients and its contribution to poor prognosis via chemoresistance and the propensity for the occurrence of carcinomatosis peritonei. Surgery 2020; 169:1213-1220. [PMID: 33376002 DOI: 10.1016/j.surg.2020.11.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/22/2020] [Accepted: 11/12/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The aim of this study was to elucidate the correlation of high-mobility group protein A2 overexpression with gastric cancer prognosis and compare its prognostic power with that of pre-existing markers. METHODS Malignant tissues from 396 patients with gastric cancer who underwent gastrectomy from 2008 to 2012 were examined. High-mobility group protein A2 expression was assessed by immunohistochemistry and the sensitivity and specificity for predicting disease progression and overall survival of high-mobility group protein A2 and the prognostic biomarkers p53, Ki-67, human epidermal growth factor receptor 2, cyclooxygenase-2, and epidermal growth factor receptor were compared. RESULTS A total of 95 samples (24.1%) showed high-mobility group protein A2 overexpression, which was related to advanced stage, undifferentiated histology, and lymphatic and perineural invasion. Additionally, high-mobility group protein A2 overexpression was an independent prognostic factor in multivariate analysis for disease progression and overall survival. Based on Kaplan-Meier survival analysis disease progression and overall survival, the high-mobility group protein A2-overexpressing patients showed worse survival. The recurrence pattern of peritoneal dissemination was more frequently observed in high-mobility group protein A2-positive group. Moreover, chemoresistance was more frequently observed in the high-mobility group protein A2-positive group. High-mobility group protein A2 exhibited a better ability for predicting disease progression and overall survival than other markers, and the prognostic power was enhanced when high-mobility group protein A2 was used with these markers. CONCLUSION High-mobility group protein A2 overexpression is associated with chemoresistance and a propensity for carcinomatosis peritonei after surgery in patients with gastric cancer. The power to predict the prognosis of patients with gastric cancer can be enhanced with the use of preexisting biomarkers and high-mobility group protein A2.
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Li Y, Qiang W, Griffin BB, Gao T, Chakravarti D, Bulun S, Kim JJ, Wei JJ. HMGA2-mediated tumorigenesis through angiogenesis in leiomyoma. Fertil Steril 2020; 114:1085-1096. [PMID: 32868105 DOI: 10.1016/j.fertnstert.2020.05.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To study the role of HMGA2 in promoting angiogenesis in uterine leiomyoma (LM). DESIGN This study involved evaluation of vessel density and angiogenic factors in leiomyomas with HMGA2 overexpression; examining angiogenic factor expression and AKT signaling in myometrial (MM) and leiomyoma cells by introducing HMGA2 overexpression in vitro; and exploring vessel formation induced by HMGA2 overexpression both in vitro and in vivo. SETTING University research laboratory. PATIENTS None. INTERVENTIONS None. MAIN OUTCOME MEASURES The main outcome measures include vessel density in leiomyomas with HMGA2 (HMGA2-LM) or MED12 (MED12-LM) alteration; angiogenic factor expression in primary leiomyoma and in vitro cell line model; and vessel formation in leiomyoma cells with HMGA2 overexpression in vitro and in vivo. RESULTS Angiogenic factors and receptors were significantly upregulated at mRNA and protein levels in HMGA2-LM. Specifically, HMGA2-LM exhibited increased expression of VEGFA, EGF, bFGF, TGFα, VEGFR1, and VEGFR2 compared to MED12-LM and myometrium. Overexpression of HMGA2 in MM and LM cell lines resulted in increased secretion of angiogenesis-associated factors. Secreted factors promoted human umbilical vein endothelial cell (HUVEC) migration, tube formation, and wound healing. HMGA2 overexpression upregulated IGF2BP2 and pAKT, and silencing the IGF2BP2 gene reduced pAKT levels and reduced HUVEC migration. Myometrial cells with stable HMGA2 overexpression exhibited increased colony formation and cell growth in vitro and formed xenografts with increased blood vessels. CONCLUSIONS HMGA2-LM have a high vasculature density, which likely contributes to tumor growth and disease burden of this leiomyoma subtype. HMGA2 plays an important role in angiogenesis and the involvement of IGF2BP2-mediated pAKT activity in angiogenesis, which provides a potential novel target for therapy for this subtype of LM.
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Affiliation(s)
- Yinuo Li
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Wenan Qiang
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Brannan Brooks Griffin
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Tingting Gao
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Debabrata Chakravarti
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Serdar Bulun
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - J Julie Kim
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Jian-Jun Wei
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
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Liu P, Chen S, Huang Y, Xu S, Song H, Zhang W, Sun N. LINC00667 promotes Wilms' tumor metastasis and stemness by sponging miR-200b/c/429 family to regulate IKK-β. Cell Biol Int 2020; 44:1382-1393. [PMID: 32129525 DOI: 10.1002/cbin.11334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/01/2020] [Indexed: 12/17/2022]
Abstract
Wilms' tumor, also known as nephroblastoma, is a kind of pediatric renal cancer. Previous studies have indicated that microRNAs (miRNAs) regulate various cancers progression. However, whether miR-200 family regulated Wilms' tumor progression remains to be elucidated. In our study, miR-200b/c/429 expression was downregulated in Wilms' tumor tissue samples from 25 patients. And data from three independent analyses of quantitative real-time polymerase chain reaction revealed that the expression of miR-200b/c/429 was downregulated in Wilms' tumor cell lines. Functionally, Cell counting kit-8 assay revealed that cell viability was reduced by overexpressing miR-200b/c/429. Transwell assay manifested that cell migration and invasion was hindered by miR-200b/c/429 overexpression. Sphere-forming and western blot assays demonstrated that miR-200b/c/429 overexpression suppressed the sphere formation ability. Mechanically, nuclear factor-κB (NF-κB) pathway was confirmed to be associated with Wilms' tumor progression; miR-200b/c/429 overexpression inactivated NF-κB pathway as miR-200b/c/429 was identified to target IκB kinase β (IKK-β), an NF-κB pathway-related gene. Moreover, miR-200b/c/429 was sponged by LINC00667 in Wilms' tumor cells. LINC00667 competitively bound with miR-200b/c/429 to regulate IKK-β expression and then activated NF-κB pathway in Wilms' tumor. Subsequently, rescue assays illustrated that silencing of IKK-β could reverse the effect of miR-200b/c/429 inhibition on the progression of sh-LINC00667-transfected Wilms' tumor cells. In summary, LINC00667 promoted Wilms' tumor progression by sponging miR-200b/c/429 family to regulate IKK-β.
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Affiliation(s)
- Pei Liu
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
| | - Shuofan Chen
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
| | - Yangyue Huang
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
| | - Shuai Xu
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
| | - Hongcheng Song
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
| | - Weiping Zhang
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
| | - Ning Sun
- Department of Pediatric Urology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, No. 56 Nanlishilu Street, Xicheng District, 100045, Beijing, China
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Fei L, Wang Y. microRNA‐495 reduces visceral sensitivity in mice with diarrhea‐predominant irritable bowel syndrome through suppression of the PI3K/AKT signaling pathway via PKIB. IUBMB Life 2020; 72:1468-1480. [PMID: 32187820 DOI: 10.1002/iub.2270] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/16/2020] [Accepted: 02/28/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Lifeng Fei
- Department of PhysiotherapyLinyi People's Hospital Linyi China
| | - Yanjing Wang
- Department of Children's RehabilitationLinyi People's Hospital Linyi China
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High Mobility Group A (HMGA): Chromatin Nodes Controlled by a Knotty miRNA Network. Int J Mol Sci 2020; 21:ijms21030717. [PMID: 31979076 PMCID: PMC7038092 DOI: 10.3390/ijms21030717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/16/2020] [Accepted: 01/17/2020] [Indexed: 12/11/2022] Open
Abstract
High mobility group A (HMGA) proteins are oncofoetal chromatin architectural factors that are widely involved in regulating gene expression. These proteins are unique, because they are highly expressed in embryonic and cancer cells, where they play a relevant role in cell proliferation, stemness, and the acquisition of aggressive tumour traits, i.e., motility, invasiveness, and metastatic properties. The HMGA protein expression levels and activities are controlled by a connected set of events at the transcriptional, post-transcriptional, and post-translational levels. In fact, microRNA (miRNA)-mediated RNA stability is the most-studied mechanism of HMGA protein expression modulation. In this review, we contribute to a comprehensive overview of HMGA-targeting miRNAs; we provide detailed information regarding HMGA gene structural organization and a comprehensive evaluation and description of HMGA-targeting miRNAs, while focusing on those that are widely involved in HMGA regulation; and, we aim to offer insights into HMGA-miRNA mutual cross-talk from a functional and cancer-related perspective, highlighting possible clinical implications.
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Tang Q, Xia H, Liang W, Huo X, Wei X. Synthesis and characterization of zinc oxide nanoparticles from Morus nigra and its anticancer activity of AGS gastric cancer cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 202:111698. [DOI: 10.1016/j.jphotobiol.2019.111698] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/01/2019] [Accepted: 11/07/2019] [Indexed: 12/18/2022]
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Chen Z, Hu H. Retracted: Identification of Prognosis Biomarkers of Prostatic Cancer in a Cohort of 498 Patients from TCGA. J Comput Biol 2019; 26:e1487-e1498. [PMID: 31841638 DOI: 10.1089/cmb.2019.0224] [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: 11/12/2022] Open
Abstract
The article entitled, "Identification of prognosis biomarkers of prostatic cancer in a cohort of 498 patients from TCGA," by Chen Z and Hu H. (J Comput Biol Dec 2019: e-pub ahead of print; DOI: 10.1089/cmb.2019.0224) is being officially retracted at the authors' request due to errors found in the data after publication of the article. The detected errors render the results and conclusion irreproducible, and therefore, invalid. Based on the communications received from the authors, the editorial leadership of Journal of Computational Biology agreed to retract the published paper. However, after retracting the article, it was also discovered that the same article had been previously published in volume 43, issue 6 of the journal, Current Problems in Cancer, published by Elsevier. The publisher of Journal of Computational Biology was in communication with Elseivier since simultaneous submission and/or publication is a violation of the proper protocols of peer review, and they are conducting their own evaluation. Journal of Computational Biology also notified the authors' institution of the infraction. Journal of Computational Biology, its Editor, and its Publisher are committed to preserving the integrity of the scientific record for the community it serves.
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Affiliation(s)
- Zhiqiang Chen
- Department of Urology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Haiyi Hu
- Department of Urology, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
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Cao Y, Xiong JB, Zhang GY, Liu Y, Jie ZG, Li ZR. Long Noncoding RNA UCA1 Regulates PRL-3 Expression by Sponging MicroRNA-495 to Promote the Progression of Gastric Cancer. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 19:853-864. [PMID: 31982772 PMCID: PMC6992896 DOI: 10.1016/j.omtn.2019.10.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/18/2019] [Accepted: 10/18/2019] [Indexed: 12/19/2022]
Abstract
Gastric cancer (GC) is among the most frequently occurring malignancies worldwide. In recent years, long noncoding RNAs (lncRNAs) have been widely studied because of their ability to regulate the cellular processes involved with tumorigenesis. The present study aims to investigate the underlying molecular mechanism by which lncRNA urothelial carcinoma-associated 1 (UCA1) influences the progression of GC. Differentially expressed lncRNA UCA1 was initially identified by microarray-based analysis, after which a high expression of UCA1 was determined in GC tissues and cells. It is important to note that UCA1 could upregulate the expression of phosphatase of regenerating liver-3 (PRL-3) by sponging miR-495. The expression of UCA1 and miR-495 was altered in human GC cells to evaluate cell activity in vitro, as well as peritoneal metastasis and tumor formation ability in vivo. Results suggested that increased expression of UCA1 promoted cell proliferation, migration, and invasion, accompanied by suppressed cell apoptosis, as well as enhanced peritoneal metastasis and tumorigenesis of GC cells. Meanwhile, the upregulated expression of miR-495 could reverse the promotive effects exerted by UCA1. Taken conjointly, UCA1, as a competing endogenous RNA (ceRNA) of miR-495, could accelerate the development of GC by upregulating PRL-3, highlighting a potentially promising basis for the targeted intervention treatment of GC.
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Affiliation(s)
- Yi Cao
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Jian-Bo Xiong
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Guo-Yang Zhang
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Yi Liu
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Zhi-Gang Jie
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Zheng-Rong Li
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China.
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Luo SS, Liao XW, Zhu XD. Genome-wide analysis to identify a novel microRNA signature that predicts survival in patients with stomach adenocarcinoma. J Cancer 2019; 10:6298-6313. [PMID: 31772663 PMCID: PMC6856753 DOI: 10.7150/jca.33250] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 08/30/2019] [Indexed: 12/22/2022] Open
Abstract
Objective: Using genome-wide screening, this study was aimed at identifying prognostic microRNA (miRNA) in those patients suffering from stomach adenocarcinoma (STAD). Methods: A genome-wide miRNA sequencing dataset and relevant STAD clinical information was obtained via The Cancer Genome Atlas (TCGA). Prognostic miRNA selection was carried out through a whole genome multivariate Cox regression model in order to establish a prognostic STAD signature. Results: Eleven miRNAs (hsa-mir-509-2, hsa-mir-3917, hsa-mir-495, hsa-mir-653, hsa-mir-3605, hsa-mir-2115, hsa-mir-1292, hsa-mir-137, hsa-mir-6511b-1, hsa-mir-145, and hsa-mir-138-2) were recognized as prognostic and used for the construction of a STAD prognostic signature. This signature exhibited good performance in predicting prognosis (adjusted P<0.0001, adjusted hazard ratio= 3.047, and 95% confidence interval=2.148-4.323). The time-dependent receiver operating characteristic examination exhibited area under curve values of 0.711, 0.697, 0.716, 0.733, 0.805, and 0.805, for 1-, 2-, 3-, 4-, 5-, and 10-year overall survival (OS) estimation, respectively. Comprehensive survival analysis suggests that the 11-miRNA prognostic signature acts as an independent feature of STAD prognosis and exhibits superior performance in OS prediction when compared to traditional clinical parameters. Furthermore, fourteen miRNA target genes were linked to STAD OS. These included SERPINE1, MLEC, ANGPT2, C5orf38, FZD7, MARCKS, PDGFD, DUSP6, IRS1, PSAT1, TENM3, TMEM127, BLMH, and TIRAP. Functional and gene set enrichment analysis suggested that target genes and the 11-miRNA prognostic signature were both participate in various biological processes and pathways, including the growth factor beta, Wnt, and Notch signaling pathways. Conclusions: By means of a genome-wide analysis, an 11-miRNA expression signature that may serve as an underlying prognostic indicator for those patients suffering from STAD has been identified and described here.
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Affiliation(s)
- Shan-Shan Luo
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Xi-Wen Liao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Xiao-Dong Zhu
- Department of Radiation Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
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16
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Identification of prognosis biomarkers of prostatic cancer in a cohort of 498 patients from TCGA. Curr Probl Cancer 2019; 43:100503. [PMID: 31563279 DOI: 10.1016/j.currproblcancer.2019.100503] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 07/13/2019] [Accepted: 09/09/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Prostatic cancer (PCa) is the first common cancer in male, and the prognostic variables are beneficial for clinical trial design and treatment strategies for PCa. This study was performed to identify more potential biomarkers for the prognosis of patients with PCa. METHODS AND RESULTS The transcriptome data and survival information of a cohort including 498 subjects with PCa were downloaded from TCGA. A total of 4293 differentially expressed genes (DEGs), including 1362 prognosis-related DEGs, were identified in PCa tissues compared with normal tissues. Upregulated genes, including serine/arginine-rich splicing factors (SRSFs; such as SRSF2, SRSF5, SRSF7 and SRSF8), and ubiquitin conjugating enzyme E2 (UBE2) members (such as UBE2D2, UBE2G2, UBE2J1 and UBE2E1), were identified as negative prognostic biomarkers of PCa, as the high expression of them correlated with poor overall survival of PCa patients. Several downregulated Golgi-ER traffic mediators (such as SEC31A, TMED2, and TMED10) were identified as positive prognostic biomarkers of PCa, as the high expression of them correlated with good overall survival of PCa patients. CONCLUSIONS These genes were of great interests in prognosis of PCa, and some of them may be constructive for the augmentation of clinical trial design and treatment strategies for PCa.
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17
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Kashyap D, Tuli HS, Garg VK, Goel N, Bishayee A. Oncogenic and Tumor-Suppressive Roles of MicroRNAs with Special Reference to Apoptosis: Molecular Mechanisms and Therapeutic Potential. Mol Diagn Ther 2018; 22:179-201. [PMID: 29388067 DOI: 10.1007/s40291-018-0316-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are the non-coding class of minute RNA molecules that negatively control post-transcriptional regulation of various functional genes. These miRNAs are transcribed from the loci present in the introns of functional or protein-coding genes, exons of non-coding genes, or even in the 3'-untranslated region (3'-UTR). They have potential to modulate the stability or translational efficiency of a variety of target RNA [messenger RNA (mRNA)]. The regulatory function of miRNAs has been elucidated in several pathological conditions, including neurological (Alzheimer's disease and Parkinson's disease) and cardiovascular conditions, along with cancer. Importantly, miRNA identification in cancer progression and invasion has evolved as an incipient era in cancer treatment. Several studies have shown the influence of miRNAs on various cancer processes, including apoptosis, invasion, metastasis and angiogenesis. In particular, apoptosis induction in tumor cells through miRNA has been extensively studied. The biphasic mode (up- and down-regulation) of miRNA expression in apoptosis and other cancer processes has already been determined. The findings of these studies could be utilized to develop potential therapeutic strategies for the management of various cancers. The present review critically describes the oncogenic and tumor suppressor role of miRNAs in apoptosis and other cancer processes, therapy resistance, and use of their presence in the body fluids as biomarkers.
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Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, Punjab, India
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar University, Mullana-Ambala, 133207, Haryana, India.
| | - Vivek Kumar Garg
- Department of Biochemistry, Government Medical College and Hospital, Chandigarh, 160030, Punjab, India
| | - Neelam Goel
- Department of Information Technology, University Institute of Engineering and Technology, Panjab University, Chandigarh, 160014, Punjab, India
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, FL, 33169, USA.
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18
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Lv L, Wang Q, Yang Y, Ji H. MicroRNA‑495 targets Notch1 to prohibit cell proliferation and invasion in oral squamous cell carcinoma. Mol Med Rep 2018; 19:693-702. [PMID: 30387817 DOI: 10.3892/mmr.2018.9616] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 10/03/2018] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs (miRNAs) are associated with the initiation and progression of oral squamous cell carcinoma (OSCC) by regulating a variety of cancer‑associated behaviors. Fully understanding the regulatory mechanism of miRNAs in the pathogenesis of OSCC may provide novel promising approaches for the identification of prognostic biomarkers and therapeutic targets for this particular malignancy. In the present study, reverse transcription‑quantitative polymerase chain reaction analysis was performed to detect miRNA (miR)‑495 expression in OSCC tissues and cell lines. The effects of miR‑495 on the proliferation and invasion of OSCC cells were determined using Cell Counting Kit‑8 and Matrigel invasion assays, respectively. The mechanisms underlying the action of miR‑495 in OSCC cells were also investigated. Results from the present study revealed that miR‑495 expression was downregulated in OSCC tissues and cell lines compare with in adjacent normal tissues and human oral keratinocytes, respectively. Exogenous expression of miR‑495 restricted cell proliferation and invasion of OSCC cells in vitro. Notch1 was identified as a direct functional target of miR‑495 in OSCC. Furthermore, Notch1 knockdown exhibited inhibitory effects, similar to those induced by miR‑495 overexpression in OSCC cells. Restoration of Notch1 expression rescued the suppressive effects of miR‑495 on OSCC cell proliferation and invasion. These findings suggested an important role for miR‑495 in the regulation of OSCC cell growth and metastasis, at least partly by directly targeting Notch1. In addition, the findings of the present study revealed the potential of miR‑495 as a novel therapeutic target for the treatment of patients with OSCC.
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Affiliation(s)
- Longkun Lv
- Department of Stomatology, Yidu Central Hospital of Weifang, Weifang, Shandong 262550, P.R. China
| | - Qiang Wang
- Department of Stomatology, Yidu Central Hospital of Weifang, Weifang, Shandong 262550, P.R. China
| | - Yucheng Yang
- Department of Stomatology, Yidu Central Hospital of Weifang, Weifang, Shandong 262550, P.R. China
| | - Honghai Ji
- Department of Clinical Medicine, Weifang Medical University, Weifang, Shandong 261053, P.R. China
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Yan R, Li K, Yuan DW, Wang HN, Zhang Y, Dang CX, Zhu K. Downregulation of microRNA-4295 enhances cisplatin-induced gastric cancer cell apoptosis through the EGFR/PI3K/Akt signaling pathway by targeting LRIG1. Int J Oncol 2018; 53:2566-2578. [PMID: 30320337 PMCID: PMC6203147 DOI: 10.3892/ijo.2018.4595] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 07/12/2018] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) is one of the leading causes of cancer-associated mortality worldwide. The aim of the present study was to investigate the mechanism of microRNA-4295 (miR-4295), which regulates cisplatin (DDP)-induced apoptosis in GC cells through the leucine-rich repeats and immunoglobulin-like domains 1 (LRIG1)-mediated epidermal growth factor receptor (EGFR)/phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway. Two cell lines were selected, one with the highest expression of miR-4295 and one with the lowest expression of LRIG1, for the experiments. The half maximal inhibitory concentration of DDP in the human GC MKN-28 and MKN-45 cell lines was calculated, and mitochondrial membrane potentials of the GC cells were detected by tetramethylrhodamine, ethyl ester, perchlorate staining. The proliferation and apoptosis of GC cells with or without DDP treatment were assessed by MTT assay and plate colony formation, as well as flow cytometry and TUNEL staining. Western blot analysis and reverse transcription-quantitative polymerase chain reaction were employed to determine the expression of EGFR/PI3K/Akt signaling pathway-related genes and apoptosis-related genes. LRIG1 was identified as a target gene of miR-4295. The expression of miR-4295 was upregulated, and the expression of LRIG1 was downregulated in GC cells. Furthermore, DDP enhanced the decrease in miR-4295 expression and the increase in LRIG1 expression in GC cells. miR-4295 promoted the proliferation and inhibited the DDP-induced apoptosis of GC cells without DDP treatment. In addition, miR-4295 increased the expression levels of EGFR, PI3K, Akt, p-PI3K and p-Akt, suggesting that miR-4295 promotes the activation of the EGFR/PI3K/Akt signaling pathway by targeting LRIG1. miR-4295 targeted and negatively regulated LRIG1 expression to activate the EGFR/PI3K/Akt signaling pathway, thereby promoting the proliferation of the GC cells and inhibiting the apoptosis of the GC cells induced by DDP. Therefore, miR-4295 may be a novel therapeutic target in patients with GC.
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Affiliation(s)
- Rong Yan
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Kang Li
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Da-Wei Yuan
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Hao-Nan Wang
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yong Zhang
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Cheng-Xue Dang
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Kun Zhu
- Department of Oncology Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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20
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Xu M, Gu W, Shen Z, Wang F. Anticancer Activity of Phloretin Against Human Gastric Cancer Cell Lines Involves Apoptosis, Cell Cycle Arrest, and Inhibition of Cell Invasion and JNK Signalling Pathway. Med Sci Monit 2018; 24:6551-6558. [PMID: 30224626 PMCID: PMC6157084 DOI: 10.12659/msm.910542] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 05/02/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Gastric cancer is one of most commonly diagnosed cancers and causes significant mortality worldwide. In this study, the antiproliferative and anticancer effects of Phloretin were evaluated against gastric cancer cell lines. MATERIAL AND METHODS MTT assay was used to assess the proliferation rate of gastric cancer cells. DAPI and annexin V/PI were used for detection of apoptotic cell death. Cell invasion was investigated by Transwell assays and the expression of the proteins was estimated by immunoblotting. RESULTS The results revealed that Phloretin exerts anticancer effects on all the gastric cancer cell lines used in this study. However, the anticancer effects were more significant (p<0.05) on the AGS cell line. Further, the effect of Phloretin on the viability of normal GES-1 cells was minimal. Apoptosis assays showed that Phloretin triggers apoptotic cell death in AGS gastric cancer cells. Phloretin could also cause the arrest of the AGS gastric cancer cells in the G2/M phase of the cell cycle and suppress their ability to migrate. Western blotting analysis revealed that Phloretin significantly decreased the expression of p-JNK and p-38. However, comparatively lower effects were observed on the expression of JNK and P38. CONCLUSIONS We showed that Phloretin is an important molecule for the treatment of gastric cancer.
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Affiliation(s)
- Min Xu
- Department of Oncology, Affiliated Nanhai Hospital of Southern Medical University Foshan, Oncology Section 2, Foshan, Guangdong, P.R. China
| | - Weiguang Gu
- Department of Oncology, Affiliated Nanhai Hospital of Southern Medical University Foshan, Oncology Section 2, Foshan, Guangdong, P.R. China
| | - Zhou Shen
- Department of Traditional Chinese Medicine, Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, P.R. China
| | - Fang Wang
- Department of Gastroenterology, Feicheng Mining Central Hospital, Feicheng, Taian, Shandong, P.R. China
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21
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Li N, Han M, Zhou N, Tang Y, Tang XS. MicroRNA-495 Confers Increased Sensitivity to Chemotherapeutic Agents in Gastric Cancer via the Mammalian Target of Rapamycin (mTOR) Signaling Pathway by Interacting with Human Epidermal Growth Factor Receptor 2 (ERBB2). Med Sci Monit 2018; 24:5960-5972. [PMID: 30147110 PMCID: PMC6122272 DOI: 10.12659/msm.909458] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background In recent years, the incidence of gastric cancer (GC) has been increasing worldwide. Emerging evidence shows that microRNAs (miRs) may be involved in the pathogenesis of GC. Thus, this study explored the mediatory role of miR-495 in GC chemosensitivity, and investigated the mechanism by which it affects the biological behaviors of GC cells via the mTOR signaling pathway. Material/Methods After GC and paracancerous tissue collection, the positive rate of ERBB2 and mTOR was evaluated by immunohistochemistry. Subsequently, the expression of miR-495, ERBB2, and mTOR was determined by RT-qPCR and Western blot analysis. Next, the targeting relationship between miR-495 and ERBB2 was confirmed by dual-luciferase reporter gene assay. In addition, chemosensitivity and proliferation were detected by MTT assay and apoptosis was assessed by flow cytometry. Results We found higher positive rates of ERBB2 and mTOR and decreased expression of miR-495 in GC tissues and showed that ERBB2 is the target gene of miR-495. Furthermore, we determined that overexpression of miR-495 and silencing of ERBB2 enhanced GC cell chemosensitivity and apoptosis, but inhibited GC cell proliferation. We also found that the effect of miR-495 inhibition was lost when ERBB2 was suppressed. Conclusions The key findings of our study demonstrate that the miR-495 exerts promotive effects on GC chemosensitivity via inactivation of the mTOR signaling pathway by suppressing ERBB2. The study provides reliable evidence supporting the use of miR-495 as a novel potential target in the chemotherapy of GC.
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Affiliation(s)
- Na Li
- Department of Gastroenterology, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Mei Han
- Department of Gastroenterology, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Ning Zhou
- Department of Gastroenterology, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Yong Tang
- Department of Gastroenterology, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Xu-Shan Tang
- Department of Gastroenterology, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
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22
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Guan Y, Zhang M, Chen X, Zhang Q, Liu S, Zhang Y. Lnc RNA SNHG20 participated in proliferation, invasion, and migration of breast cancer cells via miR‐495. J Cell Biochem 2018; 119:7971-7981. [DOI: 10.1002/jcb.26588] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/06/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Yan‐Xing Guan
- Department of Nuclear MedicineThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Meng‐zhi Zhang
- Department of Nuclear MedicineThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Xue‐Zhong Chen
- Department of Nuclear MedicineThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Qing Zhang
- Department of Nuclear MedicineThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Shao‐Zheng Liu
- Department of Nuclear MedicineThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Yong‐Lu Zhang
- Department of Clinical LaboratoryThe First Affiliated Hospital of Nanchang UniversityNanchangChina
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Liu C, Jian M, Qi H, Mao WZ. MicroRNA 495 Inhibits Proliferation and Metastasis and Promotes Apoptosis by Targeting Twist1 in Gastric Cancer Cells. Oncol Res 2018; 27:389-397. [PMID: 29615148 PMCID: PMC7848466 DOI: 10.3727/096504018x15223159811838] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Recently, microRNAs (miRNAs) have been reported to participate in multiple biological processes. However, the effects of miR-495 on gastric cancer (GC) remain unclear. The purpose of this study was to explore the functions of miR-495 in GC cell proliferation, metastasis, and apoptosis. SGC-7901 and BGC-823 cell lines were transfected with miR-495 mimic, miR-495 inhibitor, and negative controls (mimic control and inhibitor control). The expressions of miR-495, cell viability, migration, apoptosis, and apoptosis-related factors were examined by qRT-PCR, trypan blue staining, Transwell, flow cytometry, and Western blot, respectively. Simultaneously, key factor expression levels of EMT were detected by qRT-PCR and Western blot. The direct target of miR-495 was confirmed by dual-luciferase assay. Additionally, sh-Twist1, pc-Twist1, and corresponding controls were transfected into SGC-7901 and BGC-823 cells, and the protein levels of EMT-associated factors were detected by Western blot. miR-495 was downregulated in GC cells. miR-495 expression level was effectively overexpressed or suppressed in SGC-7901 and BGC-823 cells. Overexpression of miR-495 significantly decreased cell viability and migration, increased apoptosis, and inhibited the EMT process. Suppression of miR-495 showed contrary results. Twist1 was clarified as a target gene of miR-495, and Twist1 silencing obviously reduced the promoting effect of miR-495 suppression on these biological processes. Twist1 silencing significantly blocked the EMT process in both SGC-7901 and BGC-823 cells. miR-495 inhibited proliferation and metastasis and promoted apoptosis by targeting Twist1 in GC cells. These data indicated that miR-495 might be a novel antitumor factor of GC and provide a new method for the treatment of GC.
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Affiliation(s)
- Chao Liu
- Qingdao University, Qingdao, P.R. China
| | - Min Jian
- Department of Laboratory Medicine, Qingdao Women and Children's Hospital, Qingdao, P.R. China
| | - Hong Qi
- Department of General Surgery, Qingdao Municipal Hospital, Qingdao, P.R. China
| | - Wei-Zheng Mao
- Department of General Surgery, Qingdao Municipal Hospital, Qingdao, P.R. China
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Ma J, Li D, Kong FF, Yang D, Yang H, Ma XX. miR-302a-5p/367-3p-HMGA2 axis regulates malignant processes during endometrial cancer development. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:19. [PMID: 29391048 PMCID: PMC5796297 DOI: 10.1186/s13046-018-0686-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/23/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Metastasis is one of the main reasons for treatment failure in endometrial cancer. Notably, high mobility group AT-hook 2 (HMGA2) has been recognized as a driving factor of tumour metastasis. microRNAs (miRNAs) are powerful posttranscriptional regulators of HMGA2. METHODS The binding sites of miR-302a-5p and miR-367-3p on HMGA2 mRNA were identified using bioinformatics prediction software and were validated via luciferase assay. The expression levels of miR-302a-5p and miR-367-3p were detected using quantitative real-time PCR and in situ hybridization. Western blotting and immunohistochemistry were used to detect the levels of HMGA2 and epithelial-mesenchymal transition pathway-related proteins. Co-immunoprecipitation was used to detect protein interactions. The roles of miR-302a-5p and miR-367-3p in the regulation of HMGA2 during the progression of endometrial cancer were investigated using both in vitro and in vivo assays. RESULTS In the present study, high HMGA2 expression was correlated with poor clinical outcomes in endometrial cancer. The binding sites of miRNAs on HMGA2 mRNA were identified using bioinformatics prediction software and were validated via luciferase assay. In the endometrial cancer cell lines Ishikawa and HEC-1A, the overexpression of miR-302a-5p/367-3p significantly inhibited the expression of HMGA2 mRNA. In endometrial cancer tissues, we showed that miR-302a-5p and miR-367-3p were significantly downregulated and thus inversely correlated with HMGA2. The miR-302a-5p and miR-367-3p expression levels were closely correlated with FIGO stage and lymph node metastasis. High expression of miR-302a-5p/367-3p was correlated with high survival rates in endometrial cancer. In addition, miR-302a-5p/367-3p suppressed the malignant behaviour of endometrial carcinoma cells via the inhibition of HMGA2 expression. CONCLUSION Our findings indicate that miR-302a-5p/367-3p-mediated expression of HMGA2 regulates the malignant behaviour of endometrial carcinoma cells, which suggests that the miR-302a-5p/367-3p-HMGA2 axis may be a predictive biomarker of endometrial cancer metastasis and patient survival and a potential therapeutic target in metastatic endometrial cancer.
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Affiliation(s)
- Jian Ma
- Department of Obstetrics and Gynecology, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Da Li
- Department of Obstetrics and Gynecology, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Fan-Fei Kong
- Department of Obstetrics and Gynecology, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Di Yang
- Department of Obstetrics and Gynecology, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Hui Yang
- Department of Obstetrics and Gynecology, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xiao-Xin Ma
- Department of Obstetrics and Gynecology, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
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Kou B, Liu W, Tang X, Kou Q. HMGA2 facilitates epithelial-mesenchymal transition in renal cell carcinoma by regulating the TGF-β/Smad2 signaling pathway. Oncol Rep 2017; 39:101-108. [PMID: 29138866 PMCID: PMC5783590 DOI: 10.3892/or.2017.6091] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 11/01/2017] [Indexed: 12/11/2022] Open
Abstract
High-mobility group AT-hook 2 (HMGA2), a member of the high mobility group family, has been reported to correlate with cancer progression. However, there is no report concerning the correlation between HMGA2 and metastasis in renal cell carcinoma. In the present study, we found that HMGA2 was highly expressed in five renal cell carcinoma cell lines compared with that in the normal renal tubular epithelial HK2 cell line. Additionally, HMGA2 facilitated cell migration and invasion of renal cell carcinoma cells, as evidenced by wound healing and Transwell assays. Subsequently, our results revealed that the E-cadherin level was upregulated, while N-cadherin, Twist1 and Twist2 expression were downregulated in HMGA2-depleted ACHN cells. In contrast, overexpression of HMGA2 in 786-O cells enhanced epithelial-mesenchymal transition (EMT). In addition, analysis of the database Cancer Browser further validated the positive correlation between HGMA2 and Twist1 or Twist2 in renal cell carcinoma. Meanwhile, Kaplan-Meier analysis indicated that low HMGA2 expression was closely associated with an increased overall survival in renal cell carcinoma patients. To confirm the underlying mechanism of HMGA2-regulated EMT, our results revealed that silencing of HMGA2 downregulated the mRNA and protein levels of TGF-β and Smad2, while HMGA2 overexpression had the opposite effect. Furthermore, TGF-β overexpression could partially reverse the anti-metastatic effect and mesenchymal-epithelial transition (MET) by HMGA2 loss, while TGF-β deficiency impeded the pro-metastatic phenotype and high expression of EMT markers induced by HMGA2 overexpression. In summary, our results demonstrated that HMGA2 facilitated a metastatic phenotype and the EMT process in renal cell carcinoma cells in vitro through a TGF-β-dependent pathway. In addition, these data strongly suggest that HGMA2 may serve as a potential therapeutic target and prognostic biomarker against renal cell carcinoma in the future.
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Affiliation(s)
- Bo Kou
- Department of Cardiovascular Surgery, First Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wei Liu
- Department of Urology, First Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaoshuang Tang
- Department of Urology, Second Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Qingshan Kou
- Medical Center, First People's Hospital of Xianyang, Xianyang, Shaanxi 712000, P.R. China
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Chu XQ, Wang J, Chen GX, Zhang GQ, Zhang DY, Cai YY. Overexpression of microRNA-495 improves the intestinal mucosal barrier function by targeting STAT3 via inhibition of the JAK/STAT3 signaling pathway in a mouse model of ulcerative colitis. Pathol Res Pract 2017; 214:151-162. [PMID: 29129493 DOI: 10.1016/j.prp.2017.10.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/22/2017] [Accepted: 10/03/2017] [Indexed: 12/17/2022]
Abstract
We aim to investigate the role of microRNA-495 (miR-495) in the intestinal mucosal barrier by indirectly targeting signal transducer and activator of transcription 3 (STAT3) through the Janus kinase-signal transducer and activator of transcription (JAK)/STAT3 signaling pathway in a mouse model of ulcerative colitis (UC). BALB/c mice were selected for establishing mice model of UC, and intestinal tissues of normal and UC mice were collected. ELISA was conducted for detecting levels of TNF-α, IL-6, IFN-γ and IL-10. The levels of SOD, MPO, MDA and NO were tested in the intestinal tissues. Dual luciferase reporter gene assay was applied to determine whether miR-495 directly targets STAT3. Cells were cultured, transfected and assigned into: normal group, blank group, NC group, miR-495 mimic group, miR-495 inhibitor group, siRNA-STAT3 group and miR-495 inhibitor+siRNA-STAT3 group. MTT was used for testing cell proliferation, flow cytometry for cell cycle and apoptosis. Northern blotting and Western blotting were performed to detect miR-495 expression and expressions of STAT3, JAK and Claudin-1. Results show that the UC group had higher expression levels of TNF-α, IL-6, IFN-γ, MPO, MDA, NO, STAT3 and JAK and lower expression levels of IL-10, SOD, miR-495 and Claudin-1, compared to the normal group. Dual luciferase reporter gene assay confirmed that STAT3 was the target gene of miR-495. The miR-495 mimic and siRNA-STAT3 groups had higher expressions of Claudin-1, higher cell proliferation and increased amount of cells in S phase, but lower expressions of STAT3 and JAK, decreased amount of cells in G0/G1 phase and cell apoptotic rate compared with the blank, NC groups. We also found that the miR-495 inhibitor+siRNA-STAT3 group had reduced miR-495 expression. No significant differences were found in mRNA and protein expressions of STAT3, JAK and Claudin-1, cell proliferation, apoptosis and cycle amongst the miR-495 inhibitor+siRNA-STAT3 groups. Our study provides evidence that miR-495 improves the intestinal mucosal barrier function by targeting STAT3 through inhibiting the JAK/STAT3 signaling pathway in UC mice.
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Affiliation(s)
- Xian-Qun Chu
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, No. 6, Jiankang Road, Jining, Shandong Province 272011, PR China
| | - Jing Wang
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, No. 6, Jiankang Road, Jining, Shandong Province 272011, PR China
| | - Guang-Xiang Chen
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, No. 6, Jiankang Road, Jining, Shandong Province 272011, PR China
| | - Guan-Qi Zhang
- Department of Hepatobiliary Surgery, Hubei Provincial People's Hospital, Wuhan 430060, PR China
| | - De-Yong Zhang
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, No. 6, Jiankang Road, Jining, Shandong Province 272011, PR China.
| | - Yong-Yan Cai
- The First Department of Pediatrics Medicine, Cangzhou Central Hospital, Cangzhou 061000, PR China
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Clinicopathological and prognostic significance of HMGA2 overexpression in gastric cancer: a meta-analysis. Oncotarget 2017; 8:100478-100489. [PMID: 29245994 PMCID: PMC5725036 DOI: 10.18632/oncotarget.19001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 06/18/2017] [Indexed: 12/29/2022] Open
Abstract
Background High mobility group protein A2 (HMGA2) overexpression has been reported to be closely related to tumor progression [1-4] and indicate significantly worse overall survival in gastric cancer [5-8]. However, a final consensus regarding this issue has not yet been reached. Thus, we conducted a meta-analysis to evaluate the association between HMGA2 expression and prognosis of gastric cancer patients. Methods The Cochrane Library, Embase, PubMed, Web of Science and China Biology Medicine databases were searched to identify eligible literature published prior to September 2016. In the included studies, the level of HMGA2 amplification was evaluated by immunohistochemistry. We performed a meta-analysis, and pooled relative risk (RRs), hazard ratio (HRs), and 95% confidence intervals (CIs) were analyzed using Review Manager 5.3. Results Six studies [5-7, 9-11] involving 712 gastric cancer patients were included and stratified by HMGA2 amplification magnitude. The results of the analysis indicated that higher HMGA2 levels were associated with several clinicopathological parameters and predicted poor prognosis in terms of overall survival (OS). Conclusions The results of the present study indicate that higher HMGA2 levels were significantly associated with TNM stage, lymph node status, vascular invasion, and poor OS in patients with gastric cancer. In conclusion, HMGA2 may serve as a promising prognostic biomarker in gastric cancer.
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