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Liu Y, Zhang K, Yang X. CircMCTP2 enhances the progression of bladder cancer by regulating the miR-99a-5p/ FZD8 axis. J Egypt Natl Canc Inst 2024; 36:8. [PMID: 38494582 DOI: 10.1186/s43046-024-00206-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/13/2024] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND CircRNAs and miRNAs are involved in the progression of tumor. CircMCTP2 is considered as a novel tumor promoter. However, the exact functions of circMCTP2 in bladder cancer are still unclear. This study was designed to explore the underlying mechanisms of circMCTP2-modulated tumor development in bladder cancer. METHODS The present study is an original research. The levels of circMCTP2 in a total of 39 bladder cancer specimens and cell lines were determined by RT-qPCR. The expression of FZD8 in T24 and RT-4 cells treated with miR-99a-5p mimics were examined using western blotting. In addition, the proliferative, migrative and invasive abilities of transfected cells were determined by CCK8 and Transwell assays. Furthermore, the apoptosis of transfected cells was evaluated using flow cytometry. Dual luciferase reporter assay was performed to elucidate the relationship between miR-99a-5p and circMCTP2/FZD8. RESULTS The levels of circMCTP2 were elevated in bladder cancer samples and cells, and this was related to worse survival rate. Downregulation of circMCTP2 suppressed growth and metastasis of cells, whereas the apoptotic rate of cells was enhanced. The levels of miR-99a-5rp was elevated after the downregulation of circMCTP2. Moreover, reverse correlation between the expression of miR-99a-5p and circMCTP2 was revealed in bladder cancer specimens. Additionally, FZD8 was the putative target of miR-99a-5p and the mimics of miR-99a-5p inhibited the proliferation, migration and invasion of bladder cancer cells via the FZD8/Wnt-b-catenin axis. Moreover, circMCTP2 regulated the growth and metastasis of bladder cancer cells potentially through regulating the miR-99a-5p/FZD8/Wnt-b-catenin axis. In summary, circMCTP2 was considered as an oncogenic factor through regulating the miR-99a-5p/FZD8/Wnt-b-catenin axis. CONCLUSIONS This novel signaling could regulate the biological behaviours of bladder cancer cells, and these findings highlighted circMCTP2 as a critical target for treating bladder cancer.
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Affiliation(s)
- Yan Liu
- Department of Urinary Surgery, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, 121000, China.
| | - Kexin Zhang
- Department of Urinary Surgery, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, 121000, China
| | - Xianxu Yang
- Department of Urinary Surgery, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, 121000, China
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Al-Zahrani MH, Assidi M, Pushparaj PN, Al-Maghrabi J, Zari A, Abusanad A, Buhmeida A, Abu-Elmagd M. Expression pattern, prognostic value and potential microRNA silencing of FZD8 in breast cancer. Oncol Lett 2023; 26:477. [PMID: 37809047 PMCID: PMC10551865 DOI: 10.3892/ol.2023.14065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Abstract
Breast cancer (BC) is one of the most widespread types of cancer affecting females, and therefore, early diagnosis is critical. BC is a complex heterogeneous disease affected by several key pathways. Among these, WNT proteins and their frizzled receptors (FZD) have been demonstrated to be crucial in regulating a number of cellular and molecular events in BC tumorigenesis. The role of the WNT receptor, FZD8, in BC has received minimal attention; for that reason, the present study examined the prognostic value of its protein expression pattern in a BC cohort. FZD8 cytoplasmic expression pattern analysis revealed that ~38% of the primary samples presented with a high expression profile, whereas ~63% of the samples had a low expression profile. Overall, ~46% of the malignant tissues in the lymph node-positive samples exhibited an increased FZD8 cytoplasmic expression, whereas 54% exhibited low expression levels. An increased expression of FZD8 was associated with several clinicopathological characteristics of the patients, including a low survival rate, tumor vascular invasion, tumor size and grade, and molecular subtypes. Affymetrix microarray triple-negative BC datasets were analyzed and compared with healthy breast tissues in order to predict the potential interfering microRNAs (miRNAs) in the WNT/FZD8 signaling pathway. A total of 29 miRNAs with the potential to interact with the WNT/FZD8 signaling pathway were identified, eight of which exhibited a significant prediction score. The target genes for each predicted miRNA were identified. On the whole, the findings of the present study suggest that FZD8 is a potential prognostic marker for BC, shedding some light onto the silencing mechanisms involved in the complex BC signaling.
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Affiliation(s)
- Maryam H. Al-Zahrani
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mourad Assidi
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Peter Natesan Pushparaj
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
| | - Jaudah Al-Maghrabi
- Department of Pathology, Faculty of Medicine, King Abdulaziz University Hospital, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Pathology, King Faisal Specialist Hospital and Research Center, Jeddah 21589, Saudi Arabia
| | - Ali Zari
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Atlal Abusanad
- Department of Medicine, Faculty of Medicine, King Abdulaziz University Hospital, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdelbaset Buhmeida
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Muhammad Abu-Elmagd
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Liu R, Xu Z, Huang X, Xu B, Chen M. Yin Yang 1 promotes the neuroendocrine differentiation of prostate cancer cells via the non-canonical WNT pathway (FYN/STAT3). Clin Transl Med 2023; 13:e1422. [PMID: 37771187 PMCID: PMC10539684 DOI: 10.1002/ctm2.1422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND A growing number of studies have shown that Yin Yang 1 (YY1) promotes the development of multiple tumours. The purpose of the current study was to determine the mechanism by which YY1 mediates neuroendocrine differentiation of prostate cancer (NEPC) cells undergoing cellular plasticity. METHODS Using the Cancer Genome Atlas and Gene Expression Omnibus (GEO) databases, we bioinformatically analyzed YY1 expression in prostate cancer (PCa). Aberrant YY1 expression was validated in different PCa tissues and cell lines via quantitative reverse transcription polymerase chain reaction, western blotting, and immunohistochemistry. In vivo and in vitro functional assays verified the oncogenicity of YY1 in PCa. Further functional assays showed that ectopic expression of YY1 promoted cellular plasticity in PCa cells via epithelial-mesenchymal transition induction and neuroendocrine differentiation. RESULTS Androgen deprivation therapy induced a decrease in YY1 protein ubiquitination, enhanced its stability, and thus enhanced the transcriptional activity of FZD8. Castration enhanced FZD8 binding to Wnt9A and mediated cellular plasticity by activating the non-canonical Wnt (FZD8/FYN/STAT3) pathway. CONCLUSIONS We identified YY1 as a novel dysregulated transcription factor that plays an important role in NEPC progression in this study. We believe that an in-depth investigation of the mechanism underlying YY1-mediated disease may lead to improved NEPC therapies.
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Affiliation(s)
- Rui‐ji Liu
- Department of Urology, Sichuan Provincial People's Hospital, School of MedicineUniversity of Electronic Science and Technology of ChinaChengduChina
- Department of UrologyAffiliated Zhongda Hospital of Southeast UniversityNanjingChina
- Surgical Research Center, Institute of UrologySoutheast University Medical SchoolNanjingChina
| | - Zhi‐Peng Xu
- Department of UrologyAffiliated Zhongda Hospital of Southeast UniversityNanjingChina
- Surgical Research Center, Institute of UrologySoutheast University Medical SchoolNanjingChina
| | - Xiang Huang
- Department of Urology, Sichuan Provincial People's Hospital, School of MedicineUniversity of Electronic Science and Technology of ChinaChengduChina
| | - Bin Xu
- Department of UrologyAffiliated Zhongda Hospital of Southeast UniversityNanjingChina
- Surgical Research Center, Institute of UrologySoutheast University Medical SchoolNanjingChina
| | - Ming Chen
- Department of UrologyAffiliated Zhongda Hospital of Southeast UniversityNanjingChina
- Surgical Research Center, Institute of UrologySoutheast University Medical SchoolNanjingChina
- Department of Urology, Nanjing Lishui District People's HospitalZhongda Hospital Lishui BranchSoutheast UniversityNanjingChina
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Zhou W, Wang Y, Huang Y, Liu J, Cheng C, Xue Q, Wang X, Chang J, Miao C. Huangqin Qingre Qubi Capsule inhibits RA pathology by binding FZD8 and further inhibiting the activity of Wnt/β-catenin signaling pathway. J Ethnopharmacol 2023; 302:115886. [PMID: 36336221 DOI: 10.1016/j.jep.2022.115886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Huangqin Qingre Qubi Capsule (HQC) is a Chinese herbal compound for the treatment of rheumatoid arthritis (RA), which is made from dry roots of Scutellaria baicalensis Georgi, dry mature seeds of Gardenia jasminoides J.Ellis, dry and mature seeds of Coix lacryma-jobi var. stenocarpa Oliv., dry mature seeds of Amygdalus persica L. and roots and rhizomes of Clematis chinensis Osbeck in the proportion of 10:9:30:5:10. HQC has a significant effect in clinical treatment of RA, which can inhibit RA inflammation, improve oxidative stress state, and effectively relieve symptoms of RA patients. AIM OF THE STUDY The anti-arthritis effect of HQC and its mechanism, especially whether it improves RA through FZD8-Wnt/β-catenin signal axis, were studied using adjuvant arthritis (AA) rats and FLS from RA patients. MATERIALS AND METHODS Real time qPCR (RT-qPCR), Western blot (WB), confocal microscopy and other molecular biological methods were used to study the anti-RA effect of HQC and its mechanism. RESULTS The expression of FZD8 was significantly up-regulated in synovium and FLS of AA rats and RA FLS. FZD8 significantly activated the Wnt/β-catenin signaling pathway, promoted abnormal proliferation of FLS, increased the levels of inflammatory factors IL-1β, IL-6 and IL-8, and significantly increased the expression of matrix metalloproteinase 3 (MMP3) and fibronectin. HQC has significant therapeutic effect on AA rats. Molecular docking and molecular dynamics showed that HQC had a good binding ability with FZD8. We also confirmed that HQC inhibited Wnt/β-catenin signaling pathway by binding FZD8, and reduced the levels of the above inflammatory factors and pathological genes of RA. CONCLUSIONS The expression of FZD8 is significantly increased in AA rats and FLS from RA patients. Clarify that HQC improves RA through the FZD8-Wnt/β-catenin signal axis, provide a clear therapeutic mechanism for HQC to improve RA, and also provide a basis for clinical promotion of HQC.
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Affiliation(s)
- Wanwan Zhou
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yuting Wang
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yurong Huang
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Jian Liu
- Department of Rheumatology, The First Affiliated Hospital, Anhui University of Chinese Medicine, Hefei, China; Institute of Rheumatism, Anhui University of Chinese Medicine, Hefei, China.
| | - Chenglong Cheng
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Qiuyun Xue
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Xiao Wang
- Department of Clinical Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, China
| | - Jun Chang
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Anhui Public Health Clinical Center, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Life Sciences, Anhui Medical University, Hefei, China.
| | - Chenggui Miao
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China; Institute of Rheumatism, Anhui University of Chinese Medicine, Hefei, China.
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Feng R, Wan J, He Y, Gong H, Xu Z, Feng J. Angiotensin-receptor blocker losartan alleviates atrial fibrillation in rats by downregulating frizzled 8 and inhibiting the activation of WNT-5A pathway. Clin Exp Pharmacol Physiol 2023; 50:19-27. [PMID: 36047789 DOI: 10.1111/1440-1681.13715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/19/2022] [Accepted: 08/30/2022] [Indexed: 12/13/2022]
Abstract
Atrial fibrillation (AF) is a common arrhythmia. Angiotensin-receptor blocker (ARB) is related to AF treatment. This study explored the mechanism of ARB in AF. AF rat models were established by Ach-CaCl2 mixed solution injection. Rats were treated with ARB by gavage and injected with pcDNA3.1-based frizzled homolog 8 (FZD8) overexpression plasmids (oe-FZD8) through the tail vein. The 12-lead electrocardiogram was recorded by biological signal acquisition and processing system and AF duration was recorded, and atrial effective refractory period (AERP) was monitored by electrophysiology. Atrial fibrosis degree, FZD8 messenger RNA and protein levels, collagen I, collagen III, transforming growth factor β1 (TGF-β1), fibronectin, α smooth muscle actin (α-SMA), WBT-5B, and p-JNK1/2 levels, interleukin 1 β (IL-1β) and interleukin 6 (IL-6) levels were detected by Masson staining, reverse transcription quantitative polymerase chain reaction, western blot assay, immunohistochemistry, and enzyme-linked immunosorbent assay. ACh-CaCl2-induced AF rats showed a large area of fused necrosis, abnormal collagen fibre proliferation, high atrial fibrosis degree, and increased atrial fibrosis area in atrial interstitium, elevated collagen I, collagen III, TGF-β1, fibronectin, α-SMA, IL-1β, and IL-6 levels, whereas these trends were averted by ARB treatment. FZD8 was highly expressed in AF rat myocardium. ARB repressed FZD8 expression, prolonged AERP and reduced AF incidence. FZD8 overexpression annulled the effects of ARB on improving AF rat myocardial fibrosis. ARB inactivated the WNT-5A pathway by suppressing FZD8. ARB inactivated the WNT-5A pathway by silencing FZD8, therefore, alleviating AF rat atrial fibrosis.
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Affiliation(s)
- Ronghua Feng
- Department of Cardiovascular Medicine, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang City, Jiangxi Province, China
| | - Jinjie Wan
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, China
| | - Yongsheng He
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, China
| | - Hui Gong
- Department of Cardiovascular Medicine, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang City, Jiangxi Province, China
| | - Zeqin Xu
- Department of Cardiovascular Medicine, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang City, Jiangxi Province, China
| | - Jiugeng Feng
- Department of Postgraduate, Medical College of Nanchang University, Nanchang City, Jiangxi Province, China
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Wang Y, Zheng X, Luo D, Xu W, Zhou X. MiR-99a alleviates apoptosis and extracellular matrix degradation in experimentally induced spine osteoarthritis by targeting FZD8. BMC Musculoskelet Disord 2022; 23:872. [PMID: 36127685 PMCID: PMC9487131 DOI: 10.1186/s12891-022-05822-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
Background Our previous study identified miR-99a as a negative regulator of early chondrogenic differentiation. However, the functional role of miR-99a in the pathogenesis of osteoarthritis (OA) remains unclear. Methods We examined the levels of miR-99a and Frizzled 8 (FZD8) expression in tissue specimens. Human SW1353 chondrosarcoma cells were stimulated with IL-6 and TNF-α to construct an in vitro OA environment. A luciferase reporter assay was performed to analyze the relationship between miR-99a and FZD8. CCK-8 assays, flow cytometry, and ELISA assays were used to assess cell viability, apoptosis, and inflammatory molecule expression, respectively. Percutaneous intra-spinal injections of papain mixed solution were performed to create an OA Sprague–Dawley rat model. Alcian Blue staining, Safranin O Fast Green staining, and Toluidine Blue O staining were performed to detect the degrees of cartilage injury. Results MiR-99a expression was downregulated in the severe spine OA patients when compared with the mild spine OA patients, and was also decreased in the experimentally induced in vitro OA environment when compared with the control environment. Functionally, overexpression of miR-99a significantly suppressed cell apoptosis and extracellular matrix degradation stimulated by IL-6 and TNF-α. FZD8 was identified as a target gene of miR-99a. Furthermore, the suppressive effects of miR-99a on cell injury induced by IL-6 and TNF-α were reversed by FZD8 overexpression. Moreover, the levels of miR-99a expression were also reduced in the induced OA model rats, and miR-99a agomir injection relieved the cartilage damage. At the molecular level, miR-99a overexpression downregulated the levels of MMP13, β-catenin, Bax, and caspase-3 protein expression and upregulated the levels of COL2A1 and Bcl-2 protein expression in the in vitro OA-like chondrocyte model and also in the experimental OA model rats. Conclusions Our data showed that miR-99a alleviated apoptosis and extracellular matrix degradation by targeting FZD8, and thereby suppressed the development and progression of experimentally induced spine osteoarthritis. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05822-8.
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Affiliation(s)
- Yeyang Wang
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong Province, China.,The Second Clinical School, Southern Medical University, Guangzhou, China
| | - Xiaoyu Zheng
- Guangdong Medical University, Zhanjiang, Guangdong Province, China
| | - Dixin Luo
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong Province, China
| | - Wangyang Xu
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong Province, China
| | - Xiaozhong Zhou
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong Province, China. .,Guangdong Medical University, Zhanjiang, Guangdong Province, China.
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Li Q, Huyan T, Cai S, Huang Q, Zhang M, Peng H, Zhang Y, Liu N, Zhang W. The role of exosomal miR-375-3p: A potential suppressor in bladder cancer via the Wnt/β-catenin pathway. FASEB J 2020; 34:12177-12196. [PMID: 32716585 DOI: 10.1096/fj.202000347r] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/09/2020] [Accepted: 06/29/2020] [Indexed: 12/24/2022]
Abstract
miR-375-3p is a significantly downregulated miRNA in bladder cancer (BC). However, its role in BC regulation is still unclear. In this study, we reported that miR-375-3p overexpression inhibited proliferation and migration and promoted apoptosis in BC cells. Frizzled-8 (FZD8) gene is identified as the direct miR-375-3p targeting gene. miR-375-3p blocks the Wnt/β-catenin pathway and downstream molecules Cyclin D1 and c-Myc by inhibiting the expression of FZD8 directly, it could increase caspase 1 and caspase 3 expression and promote T24 cell apoptosis as well. miR-375-3p also showed a significant inhibitory effect in vivo in bladder tumor-bearing nude mice, as demonstrated by the reduced tumor volume and Ki67 proliferation index in tumor tissue. Collectively, miR-375-3p is a suppressor of BC that inhibits proliferation and metastasis, and promotes apoptosis in BC cells as well as suppresses tumor growth in a T24 xenograft mouse model, which could be used as a potential therapeutic approach for BC in future.
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Affiliation(s)
- Qi Li
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Ting Huyan
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, China
| | - Suna Cai
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Qiuping Huang
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Mengzhao Zhang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hourong Peng
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yujun Zhang
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Ningjing Liu
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Wei Zhang
- Department of Anesthesiology, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University), Zhengzhou, China
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Chen W, Liu Z, Mai W, Xiao Y, You X, Qin L. FZD8 Indicates a Poor Prognosis and Promotes Gastric Cancer Invasion and Metastasis via B-Catenin Signaling Pathway. Ann Clin Lab Sci 2020; 50:13-23. [PMID: 32161008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
FZD8, a G protein-coupled receptor protein belonging to the Frizzled family, is considered to play an important role in cancer invasion and metastasis. However, the function of FZD8 in the invasion and metastasis of gastric cancer (GC) has not been elucidated. In this study, we first confirm that FZD8 protein expression was significantly upregulated in gastric cancer tissue and has a potential to be an independent predictor of poor prognosis for patients with GC. In vivo and in vitro evidences were provided that support the idea of FZD8 being able to suppress GC cell invasion and metastasis. Further studies show that FZD8 promotes the markers expression related to invasion and metastasis. FZD8 exerts biological function through the β-catenin pathway which plays an important role in invasion and metastasis of gastric cancer cells. Finally, FZD8 could activate the β-catenin pathway and its target gene's expression. In conclusion, our findings show that FZD8 promotes GC invasion and metastasis via the β-catenin pathway.
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Affiliation(s)
- Wen Chen
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Department of Surgery, Jiangxi Provincial Cancer Hospital, Nanchang, Jiangxi Province, China
| | - Zhiwen Liu
- Department of Surgery, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi Province, China
| | - Wenli Mai
- Department of Surgery, Jiangxi Provincial Cancer Hospital, Nanchang, Jiangxi Province, China
| | - Yu Xiao
- Department of Surgery, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi Province, China
| | - Xiaolong You
- Department of Surgery, Jiangxi Provincial Cancer Hospital, Nanchang, Jiangxi Province, China
| | - Lei Qin
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Abstract
Background miRNAs were found to play crucial roles in regulating cellular behaviors. The aim of this study was to investigate the biological function of miRNA-99b-5p (miR-99b-5p) in non-small cell lung cancer (NSCLC). Materials and methods miR-99b-5p expression level in NSCLC cell lines was detected by quantitative real-time PCR (qRT-PCR). Cell proliferation, migration and invasion were examined by cell counting kit-8 (CCK-8) assay, wound-healing assay and Transwell invasion assay, respectively. Dual-luciferase activity reporter assay and Western blot assay were conducted to validate the target of miR-99b-5p. Results The expression of miR-99b-5p was decreased in NSCLC cell lines compared with normal cell line. Overexpression of miR-99b-5p inhibits cell proliferation, migration and invasion in vitro. FZD8 was validated as a direct target of miR-99b-5p. Overexpression of FZD8 partially abolished the effects of miR-99b-5p mimic on NSCLC cell behaviors. Conclusion Collectively, our results demonstrated that miR-99b-5p inhibits NSCLC cell proliferation, migration and invasion through targeting FZD8. This newly identified miR-99b-5p/FZD8 axis provided novel insights into the mechanisms underlying NSCLC progression.
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Affiliation(s)
- Rui Liu
- Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650031, People's Republic of China, .,Department of Oncology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, People's Republic of China
| | - Yajuan Chen
- Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650031, People's Republic of China,
| | - Tao Shou
- Department of Oncology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, People's Republic of China
| | - Jing Hu
- Department of Oncology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, People's Republic of China
| | - Chen Qing
- Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650031, People's Republic of China,
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Chen F, Feng Z, Zhu J, Liu P, Yang C, Huang R, Deng Z. Emerging roles of circRNA_NEK6 targeting miR-370-3p in the proliferation and invasion of thyroid cancer via Wnt signaling pathway. Cancer Biol Ther 2018; 19:1139-1152. [PMID: 30207869 DOI: 10.1080/15384047.2018.1480888] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVE To identify the significantly altered circRNAs and mRNAs in thyroid cancer, investigate their target miRNAs and determine their biological functions. METHODS The differentially expressed circRNAs, mRNAs and pathways in thyroid cancer were identified by microarray analysis and gene set enrichment analysis (GSEA). The correlative circRNAs and mRNAs were found out through Pearson correlative analysis. The common target miRNAs of circNEK6 and FZD8 related to thyroid cancer was screened out through Targetscan, miRanda and HMDD analysis. The mRNA and protein expressions in thyroid cancer tissues and cells were detected by qRT-PCR and western blot. CircRNA was confirmed by the RNase R digestion and nucleic acid electrophoresis. The target relationships were verified by the dual luciferase reporter assay. Cell viability, invasion and apoptosis were determined by MTT assay, Transwell assay and flow cytometry, respectively. RESULTS CircNEK6 and FZD8 were significantly up-regulated in thyroid cancer, with strong correlations. The Wnt signaling pathway was activated in thyroid cancer. MiR-370-3p was the common target miRNA of circNEK6 and FZD8, and it was down-regulated in thyroid cancer. Overexpression of circNEK6 and FZD8 could promote the growth and invasion of thyroid cancer cells, while up-regulation of miR-370-3p could suppress thyroid cancer progression and inhibit the Wnt signaling pathway. MiR-370-3p's effect on thyroid cancer cells could be rescued by circNEK6 or FZD8. CONCLUSION CircNEK6 promoted the progression of thyroid cancer through up-regulating FZD8 and activating Wnt signaling pathway by targeting miR-370-3p.
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Affiliation(s)
- Fukun Chen
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
| | - Zhiping Feng
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
| | - Jialun Zhu
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
| | - Pengjie Liu
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
| | - Chuanzhou Yang
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
| | - Rongkai Huang
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
| | - Zhiyong Deng
- a Department of Nuclear Medicine , Yunnan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University , Kunming Yunnan , China
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Zhou F, Xu X, Wang D, Wu J, Wang J. Identification of novel NF-κB transcriptional targets in TNFα-treated HeLa and HepG2 cells. Cell Biol Int 2017; 41:555-569. [PMID: 28276104 DOI: 10.1002/cbin.10762] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 03/04/2017] [Indexed: 12/21/2022]
Abstract
Identification of target genes of NF-κB is critical for deeply understanding its biological functions. Here, we identified five novel NF-κB target genes. Firstly, we found that 20 NF-κB potential target genes (PTGs) identified by ChIP-Seq and Genechip assay were enriched into the KEGG term of Pathways in cancer, 16 of them were enriched into the KEGG pathways of small cell lung cancer, chronic myeloid leukemia, basal cell carcinoma, pancreatic cancer, and colorectal cancer. Among these PTGs, there are many documented NF-κB target genes. Therefore, NF-κB may play important role in cancer progression by transcriptionally regulating these genes. Apart from the known target genes, we also found some novel PTGs including CYCS, MITF, FZD1, FZD8, and PIAS1. We subsequently demonstrated whether NF-κB transcriptionally control the five PTGs. The ChIP-Seq assay revealed that NF-κB/p65 bound to these genes in TNFα-treated HeLa. The bioinformatic analysis indicated that the NF-κB binding regions (i.e., ChIP-Seq peaks) contained κB sites and NF-κB/RelA DNA-binding motif. The ChIP-qPCR assay also confirmed that NF-κB bound to these regions in both TNFα-treated HeLa and HepG2 cells. The reporter construct showed that NF-κB could regulate luciferase expression via its binding region. Finally, qPCR and Western blot assay demonstrated that NF-κB indeed regulated the expression of these genes in the TNFα-treated HeLa and HepG2 cells. In a word, CYCS, MITF, FZD1, FZD8, and PIAS1 were identified as bona fide NF-κB target genes. These findings provide more insights into the role of NF-κB in cancers.
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Affiliation(s)
- Fei Zhou
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China.,School of Life Sciences and Food Technology, Hanshan Normal University, Chaozhou, 521041, China
| | - Xinhui Xu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China
| | - Danyang Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China
| | - Jian Wu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China
| | - Jinke Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, China
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Xu L, Wen T, Liu Z, Xu F, Yang L, Liu J, Feng G, An G. MicroRNA-375 suppresses human colorectal cancer metastasis by targeting Frizzled 8. Oncotarget 2016; 7:40644-40656. [PMID: 27276676 PMCID: PMC5130033 DOI: 10.18632/oncotarget.9811] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 05/17/2016] [Indexed: 01/01/2023] Open
Abstract
microRNAs are aberrantly expressed during the development and progression of a variety of human cancers, including colorectal cancer (CRC). Of these microRNAs, microRNA-375 (miR-375) was previously observed to be downregulated in human colorectal cancer(CRC) plasma and tissues, but its functions are largely unknown. Here, we investigated the impact of miR-375 on CRC metastasis. Specifically, miR-375 expression was significantly decreased in human CRC tissues compared with their matched noncancerous tissues (NCTs), and low levels of miR-375 predicted tumor metastatic potential. The up-regulation of miR-375 suppressed colorectal cancer cell migration and invasion in vitro and reduced tumor metastases in murine models established by both orthotopic implantation and spleen injection. Furthermore, we identified Frizzled 8 (FZD8) as a direct target of miR-375 in CRC, and miR-375 negatively regulated Wnt/β-catenin signaling by suppressing FZD8. More importantly, FZD8 expression inversely correlated with overall survival in human CRC patients and is a likely independent predictor of survival. Therefore, we concluded that miR-375 functions as a tumor-suppressive microRNA by directly acting upon FZD8, which may serve as a new therapeutic target to inhibit tumor metastasis in CRC.
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Affiliation(s)
- Lingling Xu
- Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Tao Wen
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Zhe Liu
- Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Feng Xu
- Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Lei Yang
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Jian Liu
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Guosheng Feng
- Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Guangyu An
- Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
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