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Zhang F, Zhou P, Wang L, Liao X, Liu X, Ke C, Wen S, Shu Y. Polymorphisms of IFN signaling genes and FOXP4 influence the severity of COVID-19. BMC Infect Dis 2024; 24:270. [PMID: 38429664 PMCID: PMC10905836 DOI: 10.1186/s12879-024-09040-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 01/20/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND The clinical manifestations of COVID-19 range from asymptomatic, mild to moderate, severe, and critical disease. Host genetic variants were recognized to affect the disease severity. However, the genetic landscape differs among various populations. Therefore, we explored the variants associated with COVID-19 severity in the Guangdong population. METHODS A total of 314 subjects were selected, of which the severe and critical COVID-19 patients were defined as "cases", and the mild and moderate patients were defined as "control". Twenty-two variants in interferon-related genes and FOXP4 were genotyped using the MassARRAY technology platform. RESULTS IFN signaling gene MX1 rs17000900 CA + AA genotype was correlated with a reduced risk of severe COVID-19 in males (P = 0.001, OR = 0.050, 95%CI = 0.008-0.316). The AT haplotype comprised of MX1 rs17000900 and rs2071430 was more likely to protect against COVID-19 severity (P = 6.3E-03). FOXP4 rs1886814 CC genotype (P = 0.001, OR = 3.747, 95%CI = 1.746-8.043) and rs2894439 GA + AA genotype (P = 0.001, OR = 5.703, 95% CI = 2.045-15.903) were correlated with increased risk of severe COVID-19. Haplotype CA comprised of rs1886814 and rs2894439 was found to be correlated with adverse outcomes (P = 7.0E-04). FOXP4 rs1886814 CC (P = 0.0004) and rs2894439 GA + AA carriers had higher neutralizing antibody titers (P = 0.0018). The CA + AA genotype of MX1 rs17000900 tended to be correlated with lower neutralizing antibody titers than CC genotype (P = 0.0663), but the difference was not statistically significant. CONCLUSION Our study found a possible association between MX1 and FOXP4 polymorphisms and the severity of COVID-19. Distinguishing high-risk patients who develop severe COVID-19 will provide clues for early intervention and individual treatment strategies.
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Affiliation(s)
- Feng Zhang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, P. R. China
| | - Pingping Zhou
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, P. R. China
| | - Liangliang Wang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, P. R. China
| | - Xinzhong Liao
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, P. R. China
| | - Xuejie Liu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, P. R. China
| | - Changwen Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, P. R. China
| | - Simin Wen
- Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, P. R. China.
| | - Yuelong Shu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, P. R. China.
- Key Laboratory of Pathogen Infection Prevention and Control (MOE), State Key Laboratory of Respiratory Health and Multimorbidity, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 102629, P. R. China.
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2
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Pendleton KE, Hernandez-Garcia A, Lyu JM, Campbell IM, Shaw CA, Vogt J, High FA, Donahoe PK, Chung WK, Scott DA. FOXP1 Haploinsufficiency Contributes to the Development of Congenital Diaphragmatic Hernia. J Pediatr Genet 2024; 13:29-34. [PMID: 38567173 PMCID: PMC10984716 DOI: 10.1055/s-0043-1767731] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 04/11/2022] [Indexed: 03/30/2023]
Abstract
FOXP1 encodes a transcription factor involved in tissue regulation and cell-type-specific functions. Haploinsufficiency of FOXP1 is associated with a neurodevelopmental disorder: autosomal dominant mental retardation with language impairment with or without autistic features. More recently, heterozygous FOXP1 variants have also been shown to cause a variety of structural birth defects including central nervous system (CNS) anomalies, congenital heart defects, congenital anomalies of the kidney and urinary tract, cryptorchidism, and hypospadias. In this report, we present a previously unpublished case of an individual with congenital diaphragmatic hernia (CDH) who carries an approximately 3.8 Mb deletion. Based on this deletion, and deletions previously reported in two other individuals with CDH, we define a CDH critical region on chromosome 3p13 that includes FOXP1 and four other protein-coding genes. We also provide detailed clinical descriptions of two previously reported individuals with CDH who carry de novo, pathogenic variants in FOXP1 that are predicted to trigger nonsense-mediated mRNA decay. A subset of individuals with putatively deleterious FOXP4 variants has also been shown to develop CDH. Since FOXP proteins function as homo- or heterodimers and the homologs of FOXP1 and FOXP4 are expressed at the same time points in the embryonic mouse diaphragm, they may function together as a dimer, or in parallel as homodimers, to regulate gene expression during diaphragm development. Not all individuals with heterozygous, loss-of-function changes in FOXP1 develop CDH. Hence, we conclude that FOXP1 acts as a susceptibility factor that contributes to the development of CDH in conjunction with other genetic, epigenetic, environmental, and/or stochastic factors.
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Affiliation(s)
- Katherine E. Pendleton
- Genetics and Genomics Program, Baylor College of Medicine, Houston, Texas, United States
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States
| | - Andres Hernandez-Garcia
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States
| | - Jennifer M. Lyu
- Department of Surgery, Boston Children's Hospital, Boston, Massachusetts, United States
- Pediatric Surgical Research Laboratories, Massachusetts General Hospital, Boston, Massachusetts, United States
| | - Ian M. Campbell
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
| | - Chad A. Shaw
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States
| | - Julie Vogt
- West Midlands Regional Genetics Service, Birmingham Women's and Children's Hospital, Birmingham, United Kingdom
| | - Frances A. High
- Department of Surgery, Boston Children's Hospital, Boston, Massachusetts, United States
- Pediatric Surgical Research Laboratories, Massachusetts General Hospital, Boston, Massachusetts, United States
- Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, United States
| | - Patricia K. Donahoe
- Pediatric Surgical Research Laboratories, Massachusetts General Hospital, Boston, Massachusetts, United States
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, United States
| | - Wendy K. Chung
- Departments of Pediatrics, Columbia University, New York, New York, United States
- Department of Medicine, Columbia University, New York, New York, United States
| | - Daryl A. Scott
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Texas, United States
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3
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Zhou T, Ma N, Zhang YL, Chen XH, Luo X, Zhang M, Gao QJ, Zhao DW. Transcription factor FOXP4 inversely governs tumor suppressor genes and contributes to thyroid cancer progression. Heliyon 2024; 10:e23875. [PMID: 38293397 PMCID: PMC10826616 DOI: 10.1016/j.heliyon.2023.e23875] [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: 04/28/2023] [Revised: 11/30/2023] [Accepted: 12/14/2023] [Indexed: 02/01/2024] Open
Abstract
Objective In recent decades, thyroid cancer (TC) has exhibited a rising incidence pattern. Elevated levels of the transcription factor FOXP4 have been strongly linked to the progression of diverse tumors; nevertheless, its specific role in thyroid cancer remains underexplored. The primary objective of this study was to elucidate the functions of FOXP4 and its associated target gene, FBXW7, in the context of thyroid cancer. Methods FOXP4 and FBXW7 expression levels in TC tissues and cell lines were assessed through immunohistochemistry and RT-qPCR analyses. The functional aspects of FOXP4, including its effects on cell proliferation, migration capabilities, cell cycle regulation, and epithelial-mesenchymal transition (EMT), were investigated. Furthermore, the interaction between FOXP4 and FBXW7 was confirmed using chromatin immunoprecipitation (ChIP) assays. The impact of FBXW7 on FOXP4-mediated cellular phenotypes was subsequently examined. Additionally, the in vivo role of FOXP4 and FBXW7 in tumor growth was elucidated through the establishment of a murine tumor model. Results Elevated levels of FOXP4 were observed in papillary carcinoma tissues, and patients exhibiting high FBXW7 levels showed a more favorable prognosis. KTC-1 cells displayed a concomitant increase in FOXP4 expression and decrease in FBXW7 expression. FOXP4 overexpression in these cells enhanced cell proliferation, migration capabilities, and EMT. The interaction between the FOXP4 protein and the FBXW7 promoter was confirmed, and the effects of FOXP4 were mitigated upon overexpression of FBXW7. Furthermore, knockdown of FOXP4 led to decelerated growth of transplanted tumors and increased FBXW7 levels within the tumors. Conclusion The findings of the current study underscore the regulatory role of FOXP4 in the transcription of FBXW7 and establish a clear link between aberrations in FBXW7 expression and the manifestation of malignant phenotypes in highly aggressive TC cells.
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Affiliation(s)
- Tian Zhou
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550001, Guizhou, China
- Department of Breast Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Ning Ma
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550001, Guizhou, China
- Department of Vascular and Thyroid Surgery, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yong-lin Zhang
- Department of Breast Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Xing-hong Chen
- Department of Breast and Thyroid Surgery, Guiqian International General Hospital, Guiyang, Guizhou, China
| | - Xue Luo
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Mai Zhang
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550001, Guizhou, China
| | - Qing-jun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Dai-wei Zhao
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550001, Guizhou, China
- Department of Breast and Thyroid Surgery, Guiqian International General Hospital, Guiyang, Guizhou, China
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4
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Luo YS, Zhang K, Cheng ZS. Absence of Association between a Long COVID and Severe COVID-19 Risk Variant of FOXP4 and Lung Cancer. Front Genet 2023; 14:1258829. [PMID: 37953922 PMCID: PMC10639135 DOI: 10.3389/fgene.2023.1258829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/06/2023] [Indexed: 11/14/2023] Open
Affiliation(s)
- Yu-Si Luo
- Department of Emergency ICU, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- The Key and Characteristic Laboratory of Modern Pathobiology, The Department of Human Parasitology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ke Zhang
- The Key and Characteristic Laboratory of Modern Pathobiology, The Department of Human Parasitology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhong-Shan Cheng
- Center for Applied Bioinformatics, St. Jude Children’s Research Hospital, Memphis, TN, United States
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5
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Sun C, Zhang J, Liu J, Tong J, Wang P. Hsa_circ_0017956 Acts as miR-758-3p Sponge to Facilitate the Progression of Non-small-Cell Lung Cancer by Regulating FOXP4 Expression. Mol Biotechnol 2023; 65:1715-1728. [PMID: 36763305 DOI: 10.1007/s12033-023-00661-x] [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: 09/22/2022] [Accepted: 01/10/2023] [Indexed: 02/11/2023]
Abstract
Accumulating studies have demonstrated the important role of circular RNAs (circRNAs) in the progression of different human tumors, including non-small-cell lung cancer (NSCLC). The purpose of this study was to deeply study the function and mechanism of circ_0017956 in NSCLC. Real-time quantitative polymerase chain reaction (RT-qPCR) was applied to detect the expression of circ_0017956, microRNA-758-3p (miR-758-3p), and Forkhead Box P4 (FOXP4). Western blot was performed to determine the protein levels. Cell proliferation was examined by cell counting kit-8 (CCK-8) assay and 5-ethynyl-2'-deoxyuridine (EdU) assay. Flow cytometry was used to evaluate the apoptosis of NSCLC cells. Transwell assay was applied to detect cell migratory and invasive capacities. The angiogenesis ability was evaluated by tube formation experiment. The target relationship between miR-758-3p and circ_0017956 or FOXP4 was confirmed by dual-luciferase reporter assay. Animal experiment was conducted to assess the effect of circ_0017956 in vivo. Circ_0017956 and FOXP4 were upregulated, while miR-758-3p was downregulated in NSCLC tissues and cells. Silencing of circ_0017956 significantly suppressed cell proliferation, migration, invasion, and angiogenesis, but promoted cell apoptosis in NSCLC cells. Mechanically, circ_0017956 functioned as a sponge for miR-758-3p and miR-758-3p could directly interact with FOXP4. Moreover, silencing of miR-758-3p or overexpression of FOXP4 could overturn the anticancer influence of circ_0017956 interference on NSCLC cells. Besides that, circ_0017956 knockdown hindered tumor growth in vivo. Altogether, circ_0017956 promoted the progression of NSCLC by regulating FOXP4 through sponging miR-758-3p.
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Affiliation(s)
- Chengdong Sun
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China.
| | - Jian Zhang
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
| | - Jia Liu
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
| | - Jingjing Tong
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
| | - Panpan Wang
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
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6
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Zhou T, Zhao DW, Ma N, Zhu XY, Chen XH, Luo X, Chen S, Gao QJ. The essential role of forkhead box P4 ( FOXP4) in thyroid cancer: a study related to The Cancer Genome Atlas and experimental data. Endocr Connect 2023; 12:EC-22-0390. [PMID: 36752821 PMCID: PMC10083663 DOI: 10.1530/ec-22-0390] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 02/07/2023] [Indexed: 02/09/2023]
Abstract
OBJECTIVE Thyroid cancer (THCA) is the most common endocrine cancer in the world. Although most patients with THCA have a good prognosis, the prognosis of those with THCA who have an extra-glandular invasion, vascular invasion, and distant metastasis is poor. Therefore, it is very important to find potential biomarkers that can effectively predict the prognosis and progression of highly aggressive THCAs. It has been identified that forkhead box P4 (FOXP4) may be a new biomarker for the proliferation and prognosis for tumor diagnosis. However, the expression and function of FOXP4 in THCA remain to be determined. METHODS In the present study, the function of FOXP4 in cells was investigated through the comprehensive analysis of data in The Cancer Genome Atlas and combined with experiments including immunohistochemistry (IHC), colony formation, Cell Counting Kit-8 assay, wound scratch healing, and transwell invasion assay. RESULTS In the present study, relevant bioinformatic data showed that FOXP4 was highly expressed in THCA, which was consistent with the results of the IHC and cell experiments. Meanwhile, 10 FOXP4-related hub genes were identified as potential diagnostic genes for THCA. It was found in further experiments that FOXP4 was located in the nucleus of THCA cells, and the expression of FOXP4 in the nucleus was higher than that in the cytoplasm. FOXP4 knockdown inhibited in vitro proliferation of the THCA cells, whereas overexpression promoted the proliferation and migration of THCA cells. Furthermore, deficiency of FOXP4 induced cell-cycle arrest. CONCLUSION FOXP4 might be a potential target for diagnosing and treating THCA.
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Affiliation(s)
- Tian Zhou
- School of Clinical Medicine, GuiZhou Medical University, Guiyang, Guizhou, China
- Department of Breast Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Dai-wei Zhao
- School of Clinical Medicine, GuiZhou Medical University, Guiyang, Guizhou, China
- Department of Surgery, Second People's Hospital of Guizhou Province, Guiyang, Guizhou, China
- Correspondence should be addressed to D Zhao:
| | - Ning Ma
- School of Clinical Medicine, GuiZhou Medical University, Guiyang, Guizhou, China
| | - Xue-ying Zhu
- School of Clinical Medicine, GuiZhou Medical University, Guiyang, Guizhou, China
| | - Xing-hong Chen
- Department of Surgery, Second People's Hospital of Guizhou Province, Guiyang, Guizhou, China
| | - Xue Luo
- Department of Breast Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Song Chen
- School of Clinical Medicine, GuiZhou Medical University, Guiyang, Guizhou, China
| | - Qing-jun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
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7
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Del Viso F, Zhou D, Thiffault I, Lawson C, Cross L, Jenkins J, Rush E, Saunders C. Recurrent FOXP4 nonsense variant in two unrelated patients: Association with neurodevelopmental disease and congenital diaphragmatic hernia. Am J Med Genet A 2023; 191:259-264. [PMID: 36301021 DOI: 10.1002/ajmg.a.63006] [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: 03/06/2022] [Revised: 07/29/2022] [Accepted: 09/24/2022] [Indexed: 12/14/2022]
Abstract
De novo variants in FOXP4 were recently associated with a neurodevelopmental disorder characterized by speech and language delay, growth abnormalities, hypotonia, and variable congenital abnormalities, including congenital diaphragmatic hernia, cervical spine abnormalities, strabismus, cryptorchidism, and ptosis. The variant spectrum in this small cohort was limited to de novo missense except for one frameshift, the inheritance of which was unknown. Variants tested in vitro exhibited reduced repressor transcriptional activity, indicating loss of function is the likely mechanism of disease, but only one frameshift variant was reported. Here, we report four affected individuals from two unrelated families heterozygous for a nonsense variant, c.1893C > G, p.Tyr631*, in FOXP4. The phenotype of the affected children includes developmental delay, feeding difficulties in infancy, and similar facial features. In both cases, the variant was inherited from a parent with mild or even subclinical features. Interestingly, one patient presented with congenital diaphragmatic hernia, as reported in two other FOXP4 patients. This report implicates FOXP4 truncating variants in human disease and highlights the wide phenotypic spectrum and variable expressivity.
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Affiliation(s)
- Florencia Del Viso
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Dihong Zhou
- Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA.,School of Medicine, University of Missouri Kansas City, Kansas City, Missouri, USA
| | - Isabelle Thiffault
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, Missouri, USA.,School of Medicine, University of Missouri Kansas City, Kansas City, Missouri, USA.,Genomic Medicine Center, Children's Mercy Research Institute, Kansas City, Missouri, USA
| | - Caitlin Lawson
- Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Laura Cross
- Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Janda Jenkins
- Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Eric Rush
- Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA.,School of Medicine, University of Missouri Kansas City, Kansas City, Missouri, USA
| | - Carol Saunders
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, Missouri, USA.,School of Medicine, University of Missouri Kansas City, Kansas City, Missouri, USA.,Genomic Medicine Center, Children's Mercy Research Institute, Kansas City, Missouri, USA
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8
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Matsumoto T, Iizuka T, Nakamura M, Suzuki T, Yamamoto M, Ono M, Kagami K, Kasama H, Wakae K, Muramatsu M, Horike SI, Kyo S, Yamamoto Y, Mizumoto Y, Daikoku T, Fujiwara H. FOXP4 inhibits squamous differentiation of atypical cells in cervical intraepithelial neoplasia via an ELF3-dependent pathway. Cancer Sci 2022; 113:3376-3389. [PMID: 35838233 PMCID: PMC9530870 DOI: 10.1111/cas.15489] [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: 05/18/2022] [Revised: 06/28/2022] [Accepted: 07/03/2022] [Indexed: 11/28/2022] Open
Abstract
Although the human papillomavirus (HPV) vaccine is effective for preventing cervical cancers, this vaccine does not eliminate pre‐existing infections, and alternative strategies have been warranted. Here, we report that FOXP4 is a new target molecule for differentiation therapy of cervical intraepithelial neoplasia (CIN). An immunohistochemical study showed that FOXP4 was expressed in columnar epithelial, reserve, and immature squamous cells, but not in mature squamous cells of the normal uterine cervix. In contrast with normal mature squamous cells, FOXP4 was expressed in atypical squamous cells in CIN and squamous cell carcinoma lesions. The FOXP4‐positive areas significantly increased according to the CIN stages from CIN1 to CIN3. In monolayer cultures, downregulation of FOXP4 attenuated proliferation and induced squamous differentiation in CIN1‐derived HPV 16‐positive W12 cells via an ELF3‐dependent pathway. In organotypic raft cultures, FOXP4‐downregulated W12 cells showed mature squamous phenotypes of CIN lesions. In human keratinocyte‐derived HaCaT cells, FOXP4 downregulation also induced squamous differentiation via an ELF3‐dependent pathway. These findings suggest that downregulation of FOXP4 inhibits cell proliferation and promotes the differentiation of atypical cells in CIN lesions. Based on these results, we propose that FOXP4 is a novel target molecule for nonsurgical CIN treatment that inhibits CIN progression by inducing squamous differentiation.
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Affiliation(s)
- Takeo Matsumoto
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takashi Iizuka
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Mitsuhiro Nakamura
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takuma Suzuki
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Megumi Yamamoto
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Masanori Ono
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan.,Department of Obstetrics and Gynecology, Tokyo Medical University, Tokyo, Japan
| | - Kyosuke Kagami
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Haruki Kasama
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Kousho Wakae
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masamichi Muramatsu
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shin-Ichi Horike
- Division of Integrated Omics research, Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Satoru Kyo
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Yasuhiko Yamamoto
- Departments of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Yasunari Mizumoto
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takiko Daikoku
- Division of Animal Disease Model, Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hiroshi Fujiwara
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
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9
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Luo X, Gao Q, Zhou T, Tang R, Zhao Y, Zhang Q, Wang N, Ye H, Chen X, Chen S, Tang W, Zhao D. FOXP4-AS1 Inhibits Papillary Thyroid Carcinoma Proliferation and Migration Through the AKT Signaling Pathway. Front Oncol 2022; 12:900836. [PMID: 35720005 PMCID: PMC9202991 DOI: 10.3389/fonc.2022.900836] [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: 03/21/2022] [Accepted: 04/07/2022] [Indexed: 12/24/2022] Open
Abstract
Papillary thyroid carcinoma, also known as PTC, is one of the commonest malignancies in the endocrine system. Long non-coding RNAs (lncRNAs) in PTC could maintain proliferative signaling, induce therapeutic resistance, activate invasion and migration, and sustain stem cell-like characteristics. In this paper, results showed that lncRNA forkhead box P4 antisense RNA 1 (FOXP4-AS1) is downregulated in PTC tissues and cell lines. Patients in TCGA cohort with a higher FOXP4-AS1 expression showed a higher disease-free interval (DFI) rate, and the expression of FOXP4-AS1 is shown to be linked to the clinical stage, T stage, N stage, and extraglandular invasion condition of the TC patients. FOXP4-AS1 is localized in the cell cytoplasmic domain of PTC cells. Functionally, upregulated FOXP4-AS1 inhibited PTC cell proliferation, apoptosis, and migration, whereas it downregulated FOXP4-AS1-promoted progression of PTC. In vivo assay also confirmed the tumor inhibitory effect of FOXP4-AS1 in PTC growth. Mechanism analysis indicated that FOXP4-AS1 can play its functions by regulating the AKT signaling pathway, and AKT inhibitor treatment could attenuate the impact of FOXP4-AS1 on PTC progression. Furthermore, FOXP4-AS1 also negatively regulates the expression of its host gene FOXP4. Collectively, we showed that FOXP4-AS1 inhibited PTC progression although AKT signaling and FOXP4-AS1 plays a tumor-suppressor role in PTC tumorigenesis.
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Affiliation(s)
- Xue Luo
- Clinical Medical College, Guizhou Medical University, Guiyang, China.,Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Qingjun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Tian Zhou
- Department of Breast Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Rui Tang
- Department of Thyroid and Breast Surgery, Bijie City First People's Hospital, Bijie, China
| | - Yu Zhao
- Department of Thyroid and Breast Surgery, Qian Xi Nan People's Hospital, Xingyi, China
| | - Qifang Zhang
- Key Laboratory of Endemic and Ethnic Minority Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Nanpeng Wang
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hui Ye
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xinghong Chen
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Song Chen
- Department of Thyroid and Breast Surgery, Jinyang Hospital Affiliated to Guizhou Medical University, Guiyang, China
| | - Wenli Tang
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Daiwei Zhao
- Clinical Medical College, Guizhou Medical University, Guiyang, China.,Department of Thyroid Surgery, the Second People's Hospital of Guizhou Province, Guiyang, China
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Wang F, Xu S, Chen T, Ling S, Zhang W, Wang S, Zhou R, Xia X, Yao Z, Li P, Zhao X, Wang J, Guo X. FOXP4 differentially controls cold-induced beige adipocyte differentiation and thermogenesis. Development 2022; 149:274748. [PMID: 35297993 DOI: 10.1242/dev.200260] [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: 10/12/2021] [Accepted: 03/07/2022] [Indexed: 11/20/2022]
Abstract
Beige adipocytes have a discrete developmental origin and possess notable plasticity in their thermogenic capacity in response to various environmental cues, but the transcriptional machinery controlling beige adipocyte development and thermogenesis remains largely unknown. By analyzing beige adipocyte-specific knockout mice, we identified a transcription factor, forkhead box P4 (FOXP4), that differentially governs beige adipocyte differentiation and activation. Depletion of Foxp4 in progenitor cells impaired beige cell early differentiation. However, we observed that ablation of Foxp4 in differentiated adipocytes profoundly potentiated their thermogenesis capacity upon cold exposure. Of note, the outcome of Foxp4 deficiency on UCP1-mediated thermogenesis was confined to beige adipocytes, rather than to brown adipocytes. Taken together, we suggest that FOXP4 primes beige adipocyte early differentiation, but attenuates their activation by potent transcriptional repression of the thermogenic program.
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Affiliation(s)
- Fuhua Wang
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shuqin Xu
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Tienan Chen
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shifeng Ling
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wei Zhang
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shaojiao Wang
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Rujiang Zhou
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xuechun Xia
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhengju Yao
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Pengxiao Li
- Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaodong Zhao
- Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiqiu Wang
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xizhi Guo
- Bio-X-Renji Hospital Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
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Niu Y, Wang G, Li Y, Guo W, Guo Y, Dong Z. LncRNA FOXP4-AS1 Promotes the Progression of Esophageal Squamous Cell Carcinoma by Interacting With MLL2/H3K4me3 to Upregulate FOXP4. Front Oncol 2022; 11:773864. [PMID: 34970490 PMCID: PMC8712759 DOI: 10.3389/fonc.2021.773864] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 09/13/2021] [Accepted: 11/19/2021] [Indexed: 01/16/2023] Open
Abstract
Malignant tumors are a grave threat to human health. Esophageal squamous cell carcinoma (ESCC) is a common gastrointestinal malignant tumor. China has a high incidence of ESCC, and its morbidity and mortality are higher than the global average. Increasingly, studies have shown that long noncoding RNAs (lncRNAs) play a vital function in the occurrence and development of tumors. Although the biological function of FOXP4-AS1 has been demonstrated in various tumors, the potential molecular mechanism of FOXP4-AS1 in ESCC is still poorly understood. The expression of FOXP4 and FOXP4-AS1 was detected in ESCC by quantitative real-time PCR (qRT–PCR) or SP immunohistochemistry (IHC). shRNA was used to silence gene expression. Apoptosis, cell cycle, MTS, colony formation, invasion and migration assays were employed to explore the biological functions of FOXP4 and FOXP4-AS1. The potential molecular mechanism of FOXP4-AS1 in ESCC was determined by dual-luciferase reporter, RNA immunoprecipitation (RIP) and chromatin immunoprecipitation (ChIP). Here, we demonstrated that FOXP4-AS1 was significantly increased in ESCC tissues and cell lines, associated with lymph node metastasis and TNM staging. Cell function experiments showed that FOXP4-AS1 promoted the proliferation, invasion and migration ability of ESCC cells. The expression of FOXP4-AS1 and FOXP4 in ESCC tissues was positively correlated. Further research found that FOXP4-AS1, upregulated in ESCC, promotes FOXP4 expression by enriching MLL2 and H3K4me3 in the FOXP4 promoter through a “molecular scaffold”. Moreover, FOXP4, a transcription factor of β-catenin, promotes the transcription of β-catenin and ultimately leads to the malignant progression of ESCC. Finally, FOXP4-AS1 may be a new therapeutic target for ESCC.
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Affiliation(s)
- Yunfeng Niu
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Gaoyan Wang
- Experimental Center, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Yan Li
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wei Guo
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanli Guo
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhiming Dong
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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12
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Li H, Zhao Q, Tang Z. LncRNA RP11-116G8.5 promotes the progression of lung squamous cell carcinoma through sponging miR-3150b-3p/miR-6870-5p to upregulate PHF12/ FOXP4. Pathol Res Pract 2021; 226:153566. [PMID: 34500373 DOI: 10.1016/j.prp.2021.153566] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Lung squamous cell carcinoma (LUSC) is one of the commonest malignancies worldwide. Long noncoding RNAs (lncRNAs) have been revealed to engage in cancer development. LncRNA RP11-116G8.5 is a new founded lncRNA that has not been clearly elucidated in LUSC. MATERIALS AND METHODS Expression levels of RNAs in LUSC cells were measured through qRT-PCR. To identify the functions of RP11-116G8.5, CCK-8 assay, colony formation assay and EdU assay were conducted in indicated LUSC cells. Mechanism experiments, including RNA pull down assay, Ago2-RIP assay and luciferase reporter assay were performed to demonstrate the interaction between RP11-116G8.5 and miR-3150b-3p/miR-6870-5p. Meanwhile, the interaction between miR-3150b-3p/miR-6870-5p and their downstream targets PHD finger protein 12 (PHF12), and forkhead box P4 (FOXP4) were also proven in the same methods. RESULTS RP11-116G8.5 was expressed at high level in LUSC cell lines. Down-regulated RP11-116G8.5 repressed cell proliferation, migration and invasion, but accelerated apoptosis. Furthermore, it was proven that RP11-116G8.5 could act as sponges for miR-3150b-3p and miR-6870-5p these miRNAs were found to act as cancer suppressors in LUSC cells. PHF12 and FOXP4 were verified as the target gene of miR-3150b-3p and miR-6870-5p separately. Overexpression of PHF12 and FOXP4 could reverse the repressive effect of RP11-116G8.5 knockdown on LUSC progression. Additionally, Paired Box 5 (PAX-5) was proven to be the transcription factor for RP11-116G8.5 in LUSC cells. CONCLUSIONS LncRNA RP11-116G8.5 promotes malignant behaviors of LUSC through sponging miR-3150b-3p/miR-6870-5p to upregulate PHF12/FOXP4 expression. AVAILABILITY OF DATA The research data is confidential.
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Affiliation(s)
- Hongqing Li
- Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Qing Zhao
- Wusong Hospital, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200940, China
| | - Zhonghao Tang
- Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China.
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Yang L, Liu Z, Ma J, Wang H, Gao D, Zhang C, Ma Q. CircRPPH1 serves as a sponge for miR-296-5p to enhance progression of breast cancer by regulating FOXP4 expression. Am J Transl Res 2021; 13:7556-7573. [PMID: 34377235 PMCID: PMC8340247] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 04/21/2021] [Indexed: 06/13/2023]
Abstract
Circular RNAs (circRNAs) have been demonstrated to play critical roles in the initiation and development of breast cancer (BC). This study aimed to uncover the regulatory roles of a novel circRNA, circRPPH1 (hsa_circ_0000514) in BC progression. CircRPPH1, miR-296-5p and FOXP4 levels were determined by qRT-PCR. CircRPPH1 stability was detected in response to ribonuclease (RNase) R digestion and actinomycin D treatment. Cell growth, migration and invasion were evaluated using various functional experiments. Protein levels of proliferating cell nuclear antigen (PCNA), matrix metalloproteinase 9 (MMP-9), hexokinase 2 (HK2) and forkhead box protein 4 (FOXP4) were measured by Western blotting. Metabolic alterations of BC cells were evaluated using commercial kits. The interaction between miR-296-5p and circRPPH1/FOXP4 was assessed using dual-luciferase assay, RNA pull-down, and RNA immunoprecipitation (RIP) assay. The in vivo tumorigenesis was assessed in nude mice. According to the results, up-regulation of circRPPH1 was closely correlated with the poor prognosis of BC patients. Functional experiments showed that knockdown of circRPPH1 repressed BC cell growth, migration, invasion, glycolysis, and in vivo tumor growth. In addition, circRPPH1 could sponge miR-296-5p to enhance FOXP4 expression in BC cells. miR-296-5p inhibition or FOXP4 overexpression restored the malignant properties of circRPPH1-silenced BC cells. Thus, circRPPH1 promoted BC malignant progression through regulating miR-296-5p/FOXP4 axis, indicating a possible novel therapeutic strategy involving circRNA for BC patients.
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Affiliation(s)
- Li Yang
- The Second Department of General Surgery, The Hospital of Shunyi District BeijingBeijing, China
| | - Zimeng Liu
- The First Department of General Surgery, Jiujiang NO. 1 People’s HospitalJiujiang, Jiangxi Province, China
| | - Jinping Ma
- Department of General Surgery, Penglai People’s HospitalYantai, Shandong Province, China
| | - Hongbiao Wang
- The Fourth Department of Surgery, Balinzuoqi HospitalChifeng, Inner Mongolia Autonomous Region, China
| | - Dan Gao
- Department of Surgery, Anshan Women’s and Children’s HospitalAnshan, Liaoning Province, China
| | - Chunxia Zhang
- The Second Department of General Surgery, The Hospital of Shunyi District BeijingBeijing, China
| | - Qiang Ma
- The Second Department of General Surgery, The Hospital of Shunyi District BeijingBeijing, China
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14
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Hua T, Tian YJ, Wang RM, Zhao CF, Kong YH, Tian RQ, Wang W, Ma LX. FOXP4-AS1 is a favorable prognostic-related enhancer RNA in ovarian cancer. Biosci Rep 2021; 41:BSR20204008. [PMID: 33870423 DOI: 10.1042/BSR20204008] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/22/2021] [Accepted: 04/14/2021] [Indexed: 12/16/2022] Open
Abstract
Ovarian cancer (OV) is the main cause of deaths worldwide in female reproductive system malignancies. Enhancer RNAs (eRNAs) are derived from the transcription of enhancers and has attracted increasing attention in cancers recently. However, the biological functions and clinical significance of eRNAs in OV have not been well described presently. We used an integrated data analysis to identify prognostic-related eRNAs in OV. Tissue-specific enhancer-derived RNAs and their regulating genes were considered as putative eRNA–target pairs using the computational pipeline PreSTIGE. Gene expression profiles and clinical data of OV and 32 other cancer types were obtained from the UCSC Xena platform. Altogether, 71 eRNAs candidates showed significant correlation with overall survival (OS) of OV samples (Kaplan–Meier log-rank test, P<0.05). Among which, 23 were determined to be correlated with their potential target genes (Spearman’s r > 0.3, P<0.001). It was found that among the 23 prognostic-related eRNAs, the expression of forkhead box P4 antisense RNA 1 (FOXP4-AS1) had the highest positive correlation with its predicted target gene FOXP4 (Spearman’s r = 0.61). Moreover, the results were further validated by RT-qPCR analysis in an independent OV cohort. Our results suggested the eRNA FOXP4-AS1 expression index may be a favorable independent prognostic biomarker candidate in OV.
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15
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Li Y, Wang X, Li Z, Liu B, Wu C. MicroRNA-4651 represses hepatocellular carcinoma cell growth and facilitates apoptosis via targeting FOXP4. Biosci Rep 2020; 40:BSR20194011. [PMID: 32436934 DOI: 10.1042/BSR20194011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs (miRNAs) belong to the subgroup of small noncoding RNAs, which typically serve as important gene regulators to participate in different biological events, such as tumor cell growth and apoptosis. Recent studies indicated microRNA-4651 (miR-4651) was involved in hepatocellular carcinoma (HCC) progression. The certain role of miRNA-4651 during the progression of HCC, however, remains unclear. Herein, we investigated the mRNA expression level of miR-4651 in HCC tissues and HCC cell lines and found miR-4651 was noticeably down-regulated compared with the normal liver tissues and QSG-7701 cell line, respectively. Then, miR-4561 overexpression obviously repressed the proliferation and promoted apoptosis in two HCC cell lines. Interestingly, we further identified that miR-4561 could directly interact with FOXP4 in HCC cells by using bio-informatic method and report assay. Moreover, forced expression of FOXP4 showed an opposite effect compared with miR-4561 in HCC cell lines. Hence, our findings strongly indicated that miR-4561 regulated the HCC cell growth and apoptosis mainly through targeting the FOXP4 genes. Clinically, the miR-4561/FOXP4 axis might be a potential target for therapeutic application of HCC patient treatment.
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Chen T, Liu Y, Chen J, Zheng H, Chen Q, Zhao J. Exosomal miR-3180-3p inhibits proliferation and metastasis of non-small cell lung cancer by downregulating FOXP4. Thorac Cancer 2020; 12:372-381. [PMID: 33350095 PMCID: PMC7862798 DOI: 10.1111/1759-7714.13759] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 10/03/2020] [Revised: 11/08/2020] [Accepted: 11/08/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is one of the most malignant cancers worldwide and its pathogenesis is not completely clear. In this study, we explored the functions and mechanisms of exosomes transferring miR-3180-3p in NSCLC progression. METHODS The expression levels of miR-3180-3p in NSCLC tissues and paracarcinoma tissues was obtained from the GEO database (GEO: GSE53882). Exosomes derived from A549 cells were identified. Proliferation, migration and invasion were measured after treatment with exosomal miR-3180-3p or transfection using miR-3180-3p mimics. The relationship between miR-3180-3p and forkhead box P4 (FOXP4) was predicted using a bioinformatic tool and measured using a dual-luciferase reporter gene assay and western blotting. Finally, a mouse xenograft model of NSCLC cells was established to verify the function of exosomal miR-3180-3p in vivo. RESULTS We found that miR-3180-3p decreased in both NSCLC cell lines and patient tissues. Overexpression of miR-3180-3p or treatment with exosomal miR-3180-3p significantly suppressed cell proliferation and metastasis in NSCLC cell lines. Subsequently, we found miR-3180-3p downregulated FOXP4 protein expression levels. Furthermore, the volumes and weights of nude mouse tumors expressing exosomal miR-3180-3p were significantly reduced. CONCLUSIONS Exosomal miR-3180-3p suppresses NSCLC progression by downregulating FOXP4 expression. KEY POINTS SIGNIFICANT FINDINGS OF THE STUDY: We found that exosomal miR-3180-3p suppressed NSCLC progression and also identified a miR-3180-3p target gene. These findings provide a foundation to determine innovative therapeutic strategies. WHAT THIS STUDY ADDS This study contributes to research investigating exosomal containing miRNAs.
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Affiliation(s)
- Tengfei Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - Yali Liu
- Department of Pharmacology, Soochow University, Suzhou, China
| | - Jun Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - Huifei Zheng
- Department of Anatomy, Physiology & Pharmacology, Auburn University, Auburn, Alabama, USA
| | - Qiuyun Chen
- School of Nursing, Medical College of Soochow University, Suzhou, China
| | - Jun Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
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Snijders Blok L, Vino A, den Hoed J, Underhill HR, Monteil D, Li H, Reynoso Santos FJ, Chung WK, Amaral MD, Schnur RE, Santiago-Sim T, Si Y, Brunner HG, Kleefstra T, Fisher SE. Heterozygous variants that disturb the transcriptional repressor activity of FOXP4 cause a developmental disorder with speech/language delays and multiple congenital abnormalities. Genet Med 2021; 23:534-42. [PMID: 33110267 DOI: 10.1038/s41436-020-01016-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 11/08/2022] Open
Abstract
PURPOSE Heterozygous pathogenic variants in various FOXP genes cause specific developmental disorders. The phenotype associated with heterozygous variants in FOXP4 has not been previously described. METHODS We assembled a cohort of eight individuals with heterozygous and mostly de novo variants in FOXP4: seven individuals with six different missense variants and one individual with a frameshift variant. We collected clinical data to delineate the phenotypic spectrum, and used in silico analyses and functional cell-based assays to assess pathogenicity of the variants. RESULTS We collected clinical data for six individuals: five individuals with a missense variant in the forkhead box DNA-binding domain of FOXP4, and one individual with a truncating variant. Overlapping features included speech and language delays, growth abnormalities, congenital diaphragmatic hernia, cervical spine abnormalities, and ptosis. Luciferase assays showed loss-of-function effects for all these variants, and aberrant subcellular localization patterns were seen in a subset. The remaining two missense variants were located outside the functional domains of FOXP4, and showed transcriptional repressor capacities and localization patterns similar to the wild-type protein. CONCLUSION Collectively, our findings show that heterozygous loss-of-function variants in FOXP4 are associated with an autosomal dominant neurodevelopmental disorder with speech/language delays, growth defects, and variable congenital abnormalities.
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18
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Wang X, Liu L, Zhao W, Li Q, Wang G, Li H. LncRNA SNHG16 Promotes the Progression of Laryngeal Squamous Cell Carcinoma by Mediating miR-877-5p/ FOXP4 Axis. Onco Targets Ther 2020; 13:4569-4579. [PMID: 32547087 PMCID: PMC7251222 DOI: 10.2147/ott.s250752] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 02/21/2020] [Accepted: 04/26/2020] [Indexed: 12/24/2022] Open
Abstract
Objective Laryngeal cancer is a common malignant tumor in the ENT, of which laryngeal squamous cell carcinoma (LSCC) accounts for more than 90% of laryngeal cancer. The purpose of this study is to investigate the regulatory mechanism of lncRNA SNHG16 in LSCC. Materials and Methods Real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR) was used to measure mRNA expression. Cell Counting Kit (CCK-8), Transwell and luciferase reporter assays, flow cytometric analysis and Western blot analysis were used to investigate the function of lncRNA SNHG16 in LSCC. Results SNHG16 expression was increased in LSCC tissues and cells. The abnormal expression of SNHG16 was associated with clinical stage and lymph node metastasis in LSCC patients. In addition, knockdown of SNHG16 restrained cell proliferation, migration and invasion in LSCC. More importantly, SNHG16 acted as a competitive endogenous RNA in LSCC and regulated FOXP4 expression by making miR-877-5p sponge. Further, SNHG16 promoted LSCC progression by interacting with miR-877-5p and FOXP4. Conclusion LncRNA SNHG16 promotes the progression of LSCC by sponging miR-877-5p and upregulating FOXP4.
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Affiliation(s)
- Xiaoli Wang
- Department of Clinical Laboratory, Jinan City People's Hospital, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan 271199, People's Republic of China
| | - Liming Liu
- Department of Otorhinolaryngology, Juye County Hospital of TCM, Heze 274900, People's Republic of China
| | - Wenfei Zhao
- Department of Comprehensive Oncology Therapy, Qingdao Central Hospital, Qingdao University, Qingdao 266043, People's Republic of China
| | - Qingyan Li
- Department of Clinical Laboratory, The People's Hospital of Zhangqiu Area, Jinan 250200, People's Republic of China
| | - Guangsheng Wang
- Department of Neurology, The People's Hospital of Zhangqiu Area, Jinan 250200, People's Republic of China
| | - Huahui Li
- Department of Clinical Laboratory, Qingdao Municipal Hospital, Qingdao 266071, People's Republic of China
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Li Y, Li T, Yang Y, Kang W, Dong S, Cheng S. YY1-induced upregulation of FOXP4-AS1 and FOXP4 promote the proliferation of esophageal squamous cell carcinoma cells. Cell Biol Int 2020; 44:1447-1457. [PMID: 32159250 DOI: 10.1002/cbin.11338] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 11/11/2019] [Accepted: 03/08/2020] [Indexed: 02/06/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) belongs to one of the most common malignant tumors worldwide and possesses high mortality. Long non-coding RNAs (lncRNAs) have been demonstrated to be essential biological participants in the progression of ESCC. On the basis of bio-informatics prediction, forkhead box P4 antisense RNA 1 (FOXP4-AS1) and forkhead box P4 (FOXP4) were upregulated in esophageal carcinoma samples and were positively correlated with each other. The present study aimed to explore the function of FOXP4-AS1 and FOXP4 in ESCC cells. Function assays disclosed that knockdown of FOXP4-AS1 or FOXP4 efficiently suppressed cell proliferation and induced cell apoptosis. Moreover, FOXP4-AS1 positively regulated FOXP4 by interacting with insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) to stabilize FOXP4 messenger RNA. In addition, FOXP4-AS1 could upregulate the expression of FOXP4 by sponging miR-3184-5p. Finally, we found that Yin Yang 1 (YY1) is a transcription factor that can transcriptionally activate both FOXP4-AS1 and FOXP4 in ESCC cells. In a word, YY1-induced upregulation of FOXP4-AS1 and FOXP4 promote the proliferation of ESCC cells.
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Affiliation(s)
- Yonghui Li
- Department of Thoracic Surgery, Affiliated Hospital of Hebei University, No. 212, Yuhuadonglu, Hebei, 071000, P.R. China
| | - Tingting Li
- Department of Thoracic Surgery, Affiliated Hospital of Hebei University, No. 212, Yuhuadonglu, Hebei, 071000, P.R. China
| | - Yongbin Yang
- Department of Pathology, School of Medicine, Hebei University, No. 342, Yuhuadonglu, Hebei, 071000, P.R. China
| | - Wenli Kang
- Department of Obstetrics, Affiliated Hospital of Hebei University, No. 212, Yuhuadonglu, Hebei, 071000, P.R. China
| | - Shaoyong Dong
- Department of Thoracic Surgery, Affiliated Hospital of Hebei University, No. 212, Yuhuadonglu, Hebei, 071000, P.R. China
| | - Shujie Cheng
- Department of Hepatobiliary Surgery, Affiliated Hospital of Hebei University, No. 212, Yuhuadonglu, Baoding, Hebei, 071000, P.R. China
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Xu Y, Liu Y, Xiao W, Yue J, Xue L, Guan Q, Deng J, Sun J. MicroRNA-299-3p/ FOXP4 Axis Regulates the Proliferation and Migration of Oral Squamous Cell Carcinoma. Technol Cancer Res Treat 2020; 18:1533033819874803. [PMID: 31500519 PMCID: PMC6737863 DOI: 10.1177/1533033819874803] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs are noncoding RNAs of 21 to 23 nucleotides in length that play important roles in almost all biological pathways. The roles of microRNA-299-3p in the development and progression of oral squamous cell carcinoma remain unclear. Expression level of microRNA-299-3p in oral squamous cell carcinoma cell lines was analyzed. Then, the effects of microRNA-299-3p on oral squamous cell carcinoma cell proliferation and migration were investigated. Moreover, bioinformation algorithm and Western blot were conducted to explore whether forkhead box P4 was a direct target of miR-299-3p. We showed that microRNA-299-3p expression was significantly reduced in oral squamous cell carcinoma cell lines. Next, overexpression of microRNA-299-3p was found to inhibit oral squamous cell carcinoma cell proliferation and migration but promote apoptosis. In addition, forkhead box P4 was identified as a functional target of microRNA-299-3p. Our results provide a new perspective for the mechanisms underlying the progression of oral squamous cell carcinoma and a novel target for the treatment of oral squamous cell carcinoma.
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Affiliation(s)
- Yaoxiang Xu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Yanshan Liu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Wenlin Xiao
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Jin Yue
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Lingfa Xue
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Qunli Guan
- Department of Oral Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Jing Deng
- Department of Oral Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Jian Sun
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
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Huang C, Deng H, Wang Y, Jiang H, Xu R, Zhu X, Huang Z, Zhao X. Circular RNA circABCC4 as the ceRNA of miR-1182 facilitates prostate cancer progression by promoting FOXP4 expression. J Cell Mol Med 2019; 23:6112-6119. [PMID: 31270953 PMCID: PMC6714494 DOI: 10.1111/jcmm.14477] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [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: 02/18/2019] [Revised: 03/25/2019] [Accepted: 05/21/2019] [Indexed: 12/17/2022] Open
Abstract
In recent years, circular RNAs (circRNAs) have been identified to be essential regulators of various human cancers. However, knowledge of the functions of circRNAs in prostate cancer remains very limited. The correlation between circABCC4 and human cancer is largely unknown. This study aims to investigate the biological functions of circABCC4 in prostate cancer progression and illustrate the underlying mechanism. We found that circABCC4 was remarkably up-regulated in prostate cancer tissues and cell lines and promoted FOXP4 expression by sponging miR-1182 in prostate cancer cells. CircABCC4 knockdown markedly suppressed prostate cancer cell proliferation, cell-cycle progression, migration and invasion in vitro. Furthermore, silencing of the circRNA also delayed tumor growth in vivo. Taken together, our findings indicated that circABCC4 facilitates the malignant behaviour of prostate cancer by promoting FOXP4 expression through sponging of miR-1182. The circABCC4-miR-1182-FOXP4 regulatory loop may be a promising therapeutic target for prostate cancer intervention.
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Affiliation(s)
- Changkun Huang
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Huanghao Deng
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Yinhuai Wang
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Hongyi Jiang
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Ran Xu
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xuan Zhu
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Zhichao Huang
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xiaokun Zhao
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
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Ma L, Sun X, Kuai W, Hu J, Yuan Y, Feng W, Lu X. LncRNA SOX2 overlapping transcript acts as a miRNA sponge to promote the proliferation and invasion of Ewing's sarcoma. Am J Transl Res 2019; 11:3841-3849. [PMID: 31312393 PMCID: PMC6614621] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 05/17/2019] [Indexed: 06/10/2023]
Abstract
Long non-coding RNAs (lncRNAs) function as critical regulator in human cancers. However, the biological regulatory mechanisms of lncRNAs in Ewing's sarcoma are still elusive. This study tries to investigate the clinical significance and pathological role of lncRNA SOX2 overlapping transcript (SOX2OT) in Ewing's sarcoma progression. SOX2OT was identified to be up-regulated in Ewing's sarcoma tissue and cells. In vitro, SOX2OT knockdown suppressed Ewing's sarcoma cells proliferation and invasion, and triggered apoptosis. In vivo xenograft assays, SOX2OT knockdown significantly inhibited Ewing's sarcoma growth. With the help of bioinformatics analysis and luciferase assay, SOX2OT was validated to harbor miR-363, acting as miRNA sponge or competing endogenous RNA (ceRNA). Furthermore, FOXP4 was validated to be the target protein of miR-363. Western blot and RT-PCR confirmed that SOX2OT was positively correlated with FOXP4 protein via sponging miR-363, forming a negative cascade regulation. In conclusion, our study realizes that SOX2OT acted as oncogene in the tumorigenesis of Ewing's sarcoma, suggesting the SOX2OT/miR-363/FOXP4 pathway in Ewing's sarcoma.
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Affiliation(s)
- Li Ma
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
| | - Xingzhen Sun
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
| | - Wenxia Kuai
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
| | - Jian Hu
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
| | - Yufang Yuan
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
| | - Weijing Feng
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
| | - Xincui Lu
- Department of Pediatrics, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University Huaian 223300, China
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23
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Abstract
Background Family of forkhead box transcription factors has been found to play key roles in multiple types of cancer. Materials and methods Our study is to decipher the effects of FOXP4 in human breast cancer (BC). Quantitative real-time polymerase chain reaction and Western blot analyses were performed to determine the mRNA and protein expressions of FOXP4 in BC tissue samples and cell lines. The gain and loss of function assay were used to explore the detailed roles of FOXP4 in breast cell lines, including MDA-MB-231 and MCF-7 cells. Its effect on BC growth, migration, and invasion were evaluated by colony formation assay, CCK-8 assay, wound-healing assay, and transwell invasion assay, respectively. Results Our findings revealed that FOXP4 promotes cell proliferation, migration, as well as invasion of BC cells. Furthermore, FOXP4 also facilitates epithelial-mesenchymal transition. ChIP, qChIP assay, and dual luciferase reporter assay were used to examine whether Snail is a downstream target of FOXP4. Moreover, overexpression of Snail could partially rescue the effects of FOXP4 inhibition on cancer cell migration and invasion. Conclusion Our findings revealed that FOXP4 is a critical regulator in BC.
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Affiliation(s)
- Tao Ma
- The Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, P.R. China, .,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, P.R. China, .,Key Laboratory of Cancer Prevention and Therapy, Tianjin, P.R. China, .,Tianjin's Clinical Research Center for Cancer, Tianjin, P.R. China,
| | - Jin Zhang
- The Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, P.R. China, .,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, P.R. China, .,Key Laboratory of Cancer Prevention and Therapy, Tianjin, P.R. China, .,Tianjin's Clinical Research Center for Cancer, Tianjin, P.R. China,
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Ma L, Sun X, Kuai W, Hu J, Yuan Y, Feng W, Lu X. Retracted: Long Noncoding RNA SOX2OT Accelerates the Carcinogenesis of Wilms' Tumor Through ceRNA Through miR-363/ FOXP4 Axis. DNA Cell Biol 2018; 37:e1082-e1089. [PMID: 30481065 DOI: 10.1089/dna.2018.4420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
REFERENCES ATCC. www.lgcstandards-atcc.org/Products/All/CRL-1441.aspx?geo_country=it Memorial Sloan Kettering Cancer Cancer. https://www.mskcc.org/research-advantage/support/technology/tangiblematerial/sk-nep-1-human-ewing-sarcoma-cell-line.
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Affiliation(s)
- Li Ma
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
| | - Xingzhen Sun
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
| | - Wenxia Kuai
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
| | - Jian Hu
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
| | - Yufang Yuan
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
| | - Weijing Feng
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
| | - Xincui Lu
- Department of Pediatrics, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University , Huaian, China
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Bonin CA, Lewallen EA, Baheti S, Bradley EW, Stuart MJ, Berry DJ, van Wijnen AJ, Westendorf JJ. Identification of differentially methylated regions in new genes associated with knee osteoarthritis. Gene 2015; 576:312-8. [PMID: 26484395 DOI: 10.1016/j.gene.2015.10.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 10/15/2015] [Indexed: 12/29/2022]
Abstract
Epigenetic changes in articular chondrocytes are associated with osteoarthritis (OA) disease progression. Numerous studies have identified differentially methylated cytosines in OA tissues; however, the consequences of altered CpG methylation at single nucleotides on gene expression and phenotypes are difficult to predict. With the objective of detecting novel genes relevant to OA, we conducted a genome-wide assessment of differentially methylated sites (DMSs) and differentially methylated regions (DMRs). DNA was extracted from visually damaged and normal appearing, non-damaged human knee articular cartilage from the same joint and then subjected to reduced representation bisulfite sequencing. DMRs were identified using a genome-wide systematic bioinformatics approach. A sliding-window of 500 bp was used for screening the genome for regions with clusters of DMSs. Gene expression levels were assessed and cell culture demethylation experiments were performed to further examine top candidate genes associated with damaged articular cartilage. More than 1000 DMRs were detected in damaged osteoarthritic cartilage. Nineteen of these contained five or more DMSs and were located in gene promoters or first introns and exons. Gene expression assessment revealed that hypermethylated DMRs in damaged samples were more consistently associated with gene repression than hypomethylated DMRs were with gene activation. Accordingly, a demethylation agent induced expression of most hypermethylated genes in chondrocytes. Our study revealed the utility of a systematic DMR search as an alternative to focusing on single nucleotide data. In particular, this approach uncovered promising candidates for functional studies such as the hypermethylated protein-coding genes FOXP4 and SHROOM1, which appear to be linked to OA pathology in humans and warrant further investigation.
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Affiliation(s)
- Carolina A Bonin
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Eric A Lewallen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Saurabh Baheti
- Department of Biomedical Statistics and Informatics, Rochester, MN, United States
| | | | - Michael J Stuart
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Daniel J Berry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Andre J van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States; Department of Biochemistry & Molecular Biology, Mayo Clinic, Rochester, MN, United States
| | - Jennifer J Westendorf
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States; Department of Biochemistry & Molecular Biology, Mayo Clinic, Rochester, MN, United States.
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Yang T, Li H, Thakur A, Chen T, Xue J, Li D, Chen M. FOXP4 modulates tumor growth and independently associates with miR-138 in non-small cell lung cancer cells. Tumour Biol 2015; 36:8185-91. [PMID: 25994569 DOI: 10.1007/s13277-015-3498-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 04/23/2015] [Indexed: 12/17/2022] Open
Abstract
Family of forkhead box transcription factors, including forkhead box P4 (FOXP4), plays an important role in oncogenesis. The current study is to evaluate the role of FOXP4 in regulating human non-small cell lung cancer (NSCLC). Quantitative RT-PCR and Western blot were performed to evaluate the gene and protein expressions of FOXP4 in six NSCLC cell lines and 55 NSCLC patients. Lentivirus of small hairpin RNA (FOXP4-shRNA) was used to downregulate FOXP4 in NSCLC cell lines A549 and H1703 cells. Its effect on NSCLC growth, invasion, and cell cycle were evaluated by cell proliferation assay, migration assay, and cell cycle assay, respectively. Dual luciferase assay and Western blot were used to examine whether microRNA-138 (miR-138) was an upstream regulator of FOXP4. The dependence of FOXP4 on miR-138 associated signaling pathway was evaluated by ectopically overexpressing enhancer of zeste homolog 2 (EZH2), a known miR-138 target in NSCLC. FOXP4 was highly expressed in both NSCLC cell lines and NSCLC patients. FOXP4 downregulation by FOXP4-shRNA markedly reduced cancer cell growth and invasion, as well as induced cell cycle arrest in A549 and H1703 cells. MiR-138 was confirmed to be an upstream regulator of FOXP4 and directly regulated FOXP4 expression in A549 and H1703 cells. FOXP4 downregulation-mediated inhibition on cancer cell growth and invasion was independent on overexpressing EZH2, another direct target of miR-138 in NSCLC. Our data demonstrated that FOXP4 was a critical regulator in NSCLC and independently associated with miR-138 regulation.
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Wang G, Sun Y, He Y, Ji C, Hu B, Sun Y. MicroRNA-338-3p inhibits cell proliferation in hepatocellular carcinoma by target forkhead box P4 ( FOXP4). Int J Clin Exp Pathol 2015; 8:337-344. [PMID: 25755720 PMCID: PMC4348903] [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] [Received: 09/28/2014] [Accepted: 11/26/2014] [Indexed: 06/04/2023]
Abstract
MicroRNAs (miRNAs) are a class of small, non-coding RNAs, which have demonstrated to important gene regulators, and have critical roles in diverse biological processes including cancer cell proliferation. Previous studies suggested microRNA-338-3p (miR-338-3p) was down-regulated and play tumor suppressor roles in gastric cancer, colorectal carcinoma and lung cancer. However, the role of miR-338-3p in hepatocellular carcinoma (HCC) is still unclear. In this study, we analyzed the expression of miR-338-3p in HCC tissues and HCC cell lines. We find that miR-338-3p was downregulated in HCC tissues and cell lines. Then functional studies demonstrate ectopic miR-338-3p expression significantly suppressed the in vitro proliferation and colony formation of HCC cells and cause to cell cycle arrest. Using bio-informatic method and report assay we identified a novel miR-338-3p target, FOXP4 in HCC cells. Furthermore, knockdown of FOXP4 have the similar effects in HCC corrected with miR-338-3p. These findings suggest that miR-338-3p regulates survival of HCC cells partially through the downregulation of FOXP4. Therefore, targeting with the miR-338-3p/FOXP4 axis might serve as a novel therapeutic application to treat HCC patients.
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Affiliation(s)
- Gang Wang
- Department of Oncology, Jinan Central Hospital, Shandong UniversityJinan 250013, Shandong, China
- Department of Oncology, Anhui Medical University Affiliated Anhui Provincial HospitalHefei 230000, Anhui, China
| | - Yubei Sun
- Department of Oncology, Jinan Central Hospital, Shandong UniversityJinan 250013, Shandong, China
- Department of Oncology, Anhui Medical University Affiliated Anhui Provincial HospitalHefei 230000, Anhui, China
| | - Yifu He
- Department of Oncology, Anhui Medical University Affiliated Anhui Provincial HospitalHefei 230000, Anhui, China
| | - Chushu Ji
- Department of Oncology, Anhui Medical University Affiliated Anhui Provincial HospitalHefei 230000, Anhui, China
| | - Bing Hu
- Department of Oncology, Anhui Medical University Affiliated Anhui Provincial HospitalHefei 230000, Anhui, China
| | - Yuping Sun
- Department of Oncology, Jinan Central Hospital, Shandong UniversityJinan 250013, Shandong, China
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