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Guan B, Lu Q, Chen J, Fang J, Liu Z, Li W, Zhang L, Xu G. FLOT1 Is a Novel Serum Biomarker of Ovarian Cancer Targeted by N6-methyladenosine Modification Inhibition. Cell Biol Int 2025; 49:674-691. [PMID: 40066501 PMCID: PMC12070024 DOI: 10.1002/cbin.70015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2024] [Revised: 02/19/2025] [Accepted: 02/27/2025] [Indexed: 05/14/2025]
Abstract
Ovarian cancer (OC) is a deadly disease and lacks a precise marker for diagnosis worldwide. Our previous work has shown the overexpression of flotillin-1 (FLOT1) in OC tissue. To improve diagnostic sensitivity and accuracy, we evaluated the serum level of FLOT1 in OC patients and found that the serum concentration of FLOT1 as well as CA125 was significantly increased in patients with OC compared with healthy control (p < 0.01) and those with benign tumors (p < 0.05). The detection rate (above the upper limit of a cut-off value) of FLOT1 and CA125 was 77.78% and 72.22%, respectively, in patients with OC, which was increased to 88.89% in combination. The elevation of FLOT1 was confirmed in the serum of nude mice after the implantation of human OC cells. A high level of FLOT1 protein in the serum was positively correlated with the overexpression of FLOT1 protein in OC tissues. Furthermore, the level of m6A modification of FLOT1 mRNA was significantly high in OC cells compared with normal ovarian epithelial cells, leading to an increase in FLOT1 mRNA expression. Application of a methylation inhibitor, 3-deazaadenosine, decreased FLOT1 mRNA expression in OC cells and suppressed tumor formation in a xenograft mouse model. In conclusion, the current study demonstrated that FLOT1 is a novel serum biomarker of OC and can be targeted by m6A modification inhibition. These data highlight the potential application of FLOT1 as a diagnostic marker and a therapeutic target for patients with OC.
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Affiliation(s)
- Bin Guan
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghaiChina
- Department of OncologyShanghai Medical College, Fudan UniversityShanghaiChina
| | - Qi Lu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghaiChina
- Department of OncologyShanghai Medical College, Fudan UniversityShanghaiChina
- Department of Obstetrics and GynecologyJinshan Hospital, Fudan UniversityShanghaiChina
| | - Junyu Chen
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghaiChina
- Department of OncologyShanghai Medical College, Fudan UniversityShanghaiChina
| | - Jingyi Fang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghaiChina
- Department of OncologyShanghai Medical College, Fudan UniversityShanghaiChina
| | - Zhenyu Liu
- Shanghai Yizhi Medical Technology Co. LtdShanghaiChina
| | - Wei Li
- Shanghai Yizhi Medical Technology Co. LtdShanghaiChina
| | - Lingyun Zhang
- Department of Medical OncologyShanghai Geriatric Medical CenterShanghaiChina
- Department of Medical OncologyZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghaiChina
- Department of OncologyShanghai Medical College, Fudan UniversityShanghaiChina
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2
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Chen Y, Li Y, Wu L. Protein S-palmitoylation modification: implications in tumor and tumor immune microenvironment. Front Immunol 2024; 15:1337478. [PMID: 38415253 PMCID: PMC10896991 DOI: 10.3389/fimmu.2024.1337478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/29/2024] [Indexed: 02/29/2024] Open
Abstract
Protein S-palmitoylation is a reversible post-translational lipid modification that involves the addition of a 16-carbon palmitoyl group to a protein cysteine residue via a thioester linkage. This modification plays a crucial role in the regulation protein localization, accumulation, secretion, stability, and function. Dysregulation of protein S-palmitoylation can disrupt cellular pathways and contribute to the development of various diseases, particularly cancers. Aberrant S-palmitoylation has been extensively studied and proven to be involved in tumor initiation and growth, metastasis, and apoptosis. In addition, emerging evidence suggests that protein S-palmitoylation may also have a potential role in immune modulation. Therefore, a comprehensive understanding of the regulatory mechanisms of S-palmitoylation in tumor cells and the tumor immune microenvironment is essential to improve our understanding of this process. In this review, we summarize the recent progress of S-palmitoylation in tumors and the tumor immune microenvironment, focusing on the S-palmitoylation modification of various proteins. Furthermore, we propose new ideas for immunotherapeutic strategies through S-palmitoylation intervention.
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Affiliation(s)
- Yijiao Chen
- Department of Medical Oncology, Chongqing University Cancer Hospital, School of Medicine, Chongqing University, Chongqing, China
| | - Yongsheng Li
- Department of Medical Oncology, Chongqing University Cancer Hospital, School of Medicine, Chongqing University, Chongqing, China
| | - Lei Wu
- Department of Medical Oncology, Chongqing University Cancer Hospital, School of Medicine, Chongqing University, Chongqing, China
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3
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Mavromatis LA, Rosoff DB, Bell AS, Jung J, Wagner J, Lohoff FW. Multi-omic underpinnings of epigenetic aging and human longevity. Nat Commun 2023; 14:2236. [PMID: 37076473 PMCID: PMC10115892 DOI: 10.1038/s41467-023-37729-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 03/28/2023] [Indexed: 04/21/2023] Open
Abstract
Biological aging is accompanied by increasing morbidity, mortality, and healthcare costs; however, its molecular mechanisms are poorly understood. Here, we use multi-omic methods to integrate genomic, transcriptomic, and metabolomic data and identify biological associations with four measures of epigenetic age acceleration and a human longevity phenotype comprising healthspan, lifespan, and exceptional longevity (multivariate longevity). Using transcriptomic imputation, fine-mapping, and conditional analysis, we identify 22 high confidence associations with epigenetic age acceleration and seven with multivariate longevity. FLOT1, KPNA4, and TMX2 are novel, high confidence genes associated with epigenetic age acceleration. In parallel, cis-instrument Mendelian randomization of the druggable genome associates TPMT and NHLRC1 with epigenetic aging, supporting transcriptomic imputation findings. Metabolomics Mendelian randomization identifies a negative effect of non-high-density lipoprotein cholesterol and associated lipoproteins on multivariate longevity, but not epigenetic age acceleration. Finally, cell-type enrichment analysis implicates immune cells and precursors in epigenetic age acceleration and, more modestly, multivariate longevity. Follow-up Mendelian randomization of immune cell traits suggests lymphocyte subpopulations and lymphocytic surface molecules affect multivariate longevity and epigenetic age acceleration. Our results highlight druggable targets and biological pathways involved in aging and facilitate multi-omic comparisons of epigenetic clocks and human longevity.
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Affiliation(s)
- Lucas A Mavromatis
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Daniel B Rosoff
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
- NIH-Oxford-Cambridge Scholars Program, University of Oxford, Oxford, UK
| | - Andrew S Bell
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Jeesun Jung
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Josephin Wagner
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Falk W Lohoff
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
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Guneri-Sozeri PY, Özden-Yılmaz G, Kisim A, Cakiroglu E, Eray A, Uzuner H, Karakülah G, Pesen-Okvur D, Senturk S, Erkek-Ozhan S. FLI1 and FRA1 transcription factors drive the transcriptional regulatory networks characterizing muscle invasive bladder cancer. Commun Biol 2023; 6:199. [PMID: 36805539 PMCID: PMC9941102 DOI: 10.1038/s42003-023-04561-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
Bladder cancer is mostly present in the form of urothelium carcinoma, causing over 150,000 deaths each year. Its histopathological classification as muscle invasive (MIBC) and non-muscle invasive (NMIBC) is the most prominent aspect, affecting the prognosis and progression of this disease. In this study, we defined the active regulatory landscape of MIBC and NMIBC cell lines using H3K27ac ChIP-seq and used an integrative approach to combine our findings with existing data. Our analysis revealed FRA1 and FLI1 as two critical transcription factors differentially regulating MIBC regulatory landscape. We show that FRA1 and FLI1 regulate the genes involved in epithelial cell migration and cell junction organization. Knock-down of FRA1 and FLI1 in MIBC revealed the downregulation of several EMT-related genes such as MAP4K4 and FLOT1. Further, ChIP-SICAP performed for FRA1 and FLI1 enabled us to infer chromatin binding partners of these transcription factors and link this information with their target genes. Finally, we show that knock-down of FRA1 and FLI1 result in significant reduction of invasion capacity of MIBC cells towards muscle microenvironment using IC-CHIP assays. Our results collectively highlight the role of these transcription factors in selection and design of targeted options for treatment of MIBC.
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Affiliation(s)
- Perihan Yagmur Guneri-Sozeri
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey ,grid.21200.310000 0001 2183 9022Dokuz Eylül University Izmir International Biomedicine and Genome Institute, Inciralti, 35340 Izmir, Turkey
| | - Gülden Özden-Yılmaz
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey
| | - Asli Kisim
- grid.419609.30000 0000 9261 240XIzmir Institute of Technology, Urla, 35430 Izmir, Turkey
| | - Ece Cakiroglu
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey ,grid.21200.310000 0001 2183 9022Dokuz Eylül University Izmir International Biomedicine and Genome Institute, Inciralti, 35340 Izmir, Turkey
| | - Aleyna Eray
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey ,grid.21200.310000 0001 2183 9022Dokuz Eylül University Izmir International Biomedicine and Genome Institute, Inciralti, 35340 Izmir, Turkey
| | - Hamdiye Uzuner
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey ,grid.21200.310000 0001 2183 9022Dokuz Eylül University Izmir International Biomedicine and Genome Institute, Inciralti, 35340 Izmir, Turkey
| | - Gökhan Karakülah
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey ,grid.21200.310000 0001 2183 9022Dokuz Eylül University Izmir International Biomedicine and Genome Institute, Inciralti, 35340 Izmir, Turkey
| | - Devrim Pesen-Okvur
- grid.419609.30000 0000 9261 240XIzmir Institute of Technology, Urla, 35430 Izmir, Turkey
| | - Serif Senturk
- grid.21200.310000 0001 2183 9022Izmir Biomedicine and Genome Center, Inciralti, 35340 Izmir, Turkey ,grid.21200.310000 0001 2183 9022Dokuz Eylül University Izmir International Biomedicine and Genome Institute, Inciralti, 35340 Izmir, Turkey
| | - Serap Erkek-Ozhan
- Izmir Biomedicine and Genome Center, Inciralti, 35340, Izmir, Turkey.
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5
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FAM201A Promotes Cervical Cancer Progression and Metastasis through miR-1271-5p/Flotillin-1 Axis Targeting-Induced Wnt/β-Catenin Pathway. JOURNAL OF ONCOLOGY 2022; 2022:1123839. [PMID: 36226250 PMCID: PMC9550509 DOI: 10.1155/2022/1123839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/26/2022] [Accepted: 09/05/2022] [Indexed: 11/21/2022]
Abstract
This study investigated the role of the family with sequence similarity 201-member A (FAM201A), as previously reported oncogenic, in cervical cancer (CC). FAM201A expression in CC was analyzed through bioinformatics analyses, and its distribution in CC tissues/cells was determined by in situ hybridization. CC cells were transfected/cotransfected with FAM201A/flotillin-1 (FLOT1) overexpression plasmids and miR-1271-5p mimics, followed by functional analysis on viability, migration and invasion. Pearson's correlation tests were performed to analyze the correlation between FAM201A and miR-1271-5p in CC tissues. The targeting relationship between miR-1271-5p and FLOT1 was confirmed by dual-luciferase reporter assay. The expressions of FAM201A, miR-1271-5p, FLOT1, matrix metalloproteinases (MMP)-9, MMP-2, E-cadherin, N-cadherin, and the Wnt/β-catenin pathway-related molecules (Wnt1, β-catenin and p-β-catenin) in CC cells or tissues were assessed by quantitative reverse transcription polymerase chain reaction (qRT-PCR) and/or western blot. The results showed that FAM201A was abundantly expressed and miR-1271-5p expression was downregulated in CC. FAM201A was enriched in CC cell cytoplasm and negatively correlated with miR-1271-5p in CC tissues. FAM201A overexpression enhanced the cell viability, migration, invasion, and tumorigenesis of CC in vivo and increased FLOT1 expression. These trends were all reversed by upregulating miR-1271-5p, which induced opposite effects to FAM201A overexpression. MiR-1271-5p upregulation depleted the levels of MMP-9, MMP-2, N-cadherin, and the Wnt/β-catenin pathway-related molecules and upregulated E-cadherin expression. FLOT1 was a direct target of miR-1271-5p. FLOT1 overexpression induced effects contrary to the upregulation of miR-1271-5p and abolished miR-1271-5p upregulation-induced effects in CC cells. Overall, this study showed that FAM201A promoted cervical cancer progression and metastasis by targeting the miR-1271-5p/FLOT1 axis-induced Wnt/β-catenin pathway.
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Huang Y, Guo Y, Xu Y, Liu F, Dai S. Flotillin-1 promotes EMT of gastric cancer via stabilizing Snail. PeerJ 2022; 10:e13901. [PMID: 35990908 PMCID: PMC9387518 DOI: 10.7717/peerj.13901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/24/2022] [Indexed: 01/19/2023] Open
Abstract
Gastric cancer is one of the most common malignancies worldwide and has been identified as the third leading cause of cancer-related mortality. Flotillin-1 is a lipid raft-associated scaffolding protein and plays an important role in the progression and development of several malignant carcinomas. Flotillin-1 is involved in epithelial-mesenchymal transition (EMT) process of several solid tumors to promote metastasis. However, the detailed characteristics and mechanisms of Flotillin-1 in gastric cancer have rarely been investigated. In this study, we found Flotillin-1 upregulated in gastric cancer, and the high expression of Flotillin-1 correlated with a worse prognosis. The migration and invasion ability of gastric cancer cells was upregulated by overexpressing Flotillin-1. Knockdown of Flotillin-1 inhibits gastric cancer cells metastasis. Flotillin-1 is a key regulator of EMT process and promotes gastric cancer cells metastasis through inducing EMT. Flotillin-1 may interact with a deubiquitinase to inhibit the ubiquitination of Snail in gastric cancer cells to promote EMT process. Our study provides a rationale and potential target for the treatment of gastric cancer.
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Affiliation(s)
- Ying Huang
- The Fifth Hospital of Shijiazhuang, Shijiazhuang, Hebei, China
| | - Yun Guo
- The Fifth Hospital of Shijiazhuang, Shijiazhuang, Hebei, China
| | - Yi Xu
- The Fifth Hospital of Shijiazhuang, Shijiazhuang, Hebei, China
| | - Fei Liu
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Suli Dai
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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7
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Weidle UH, Birzele F. Bladder Cancer-related microRNAs With In Vivo Efficacy in Preclinical Models. CANCER DIAGNOSIS & PROGNOSIS 2021; 1:245-263. [PMID: 35403137 PMCID: PMC8988954 DOI: 10.21873/cdp.10033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/15/2021] [Indexed: 06/14/2023]
Abstract
Progressive and metastatic bladder cancer remain difficult to treat. In this review, we critique seven up-regulated and 25 down-regulated microRNAs in order to identify new therapeutic entities and corresponding targets. These microRNAs were selected with respect to their efficacy in bladder cancer-related preclinical in vivo models. MicroRNAs and related targets interfering with chemoresistance, cell-cycle, signaling, apoptosis, autophagy, transcription factor modulation, epigenetic modification and metabolism are described. In addition, we highlight microRNAs targeting transmembrane receptors and secreted factors. We discuss druggability issues for the identified targets.
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Affiliation(s)
- Ulrich H Weidle
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Fabian Birzele
- Roche Pharma Research and Early Development, Pharmaceutical Sciences,Roche Innovation Center Basel, Basel, Switzerland
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8
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Dai Y, Xie F, Chen Y. Reduced levels of miR-485-5p in HPV-infected cervical cancer promote cell proliferation and enhance invasion ability. FEBS Open Bio 2020; 10:1348-1361. [PMID: 32343879 PMCID: PMC7327903 DOI: 10.1002/2211-5463.12869] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/31/2019] [Accepted: 04/24/2020] [Indexed: 12/28/2022] Open
Abstract
Cervical cancer (CC) is the most common gynecological malignancy, with high incidence and mortality rates in China. The microRNA miR‐485‐5p has previously been reported to serve as a negative regulator of tumorigenesis in breast cancer and hepatocellular carcinoma, and miR‐485‐5p has been observed to be differentially expressed between CC and normal control tissue. Here, we confirmed that miR‐485‐5p expression is lower in CC than in adjacent normal tissue and proceeded to investigate the effects of miR‐485 on tumor behavior in CC cell lines. We report that miR‐485‐5p transcription is decreased in HPV‐infected CC tissue, and levels of miR‐485 in clinical samples are positively correlated with the 5‐year overall survival rate. The Transwell assay showed that miR‐485‐5p inhibited cell invasion and migration but had no influence on apoptosis and cell proliferation. Using a luciferase reporter assay, we demonstrated that miR‐485‐5p partially abrogated cell migration and proliferation by targeting FLOT‐1 mRNA. Transfection of HPV‐infected cervical carcinoma cells with an adenovirus vector encoding human FLOT‐1 partially diminished the inhibitory effects of miR‐485 on cell invasion. Taken, together, these data demonstrated that miR‐485‐5p suppresses the invasion of cancer cells by targeting FLOT‐1 in HPV‐infected cervical carcinoma cells.
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Affiliation(s)
- Yuanyuan Dai
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Fengyan Xie
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Yan Chen
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
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Zhong J, Li S, Zeng W, Li X, Gu C, Liu J, Luo XJ. Integration of GWAS and brain eQTL identifies FLOT1 as a risk gene for major depressive disorder. Neuropsychopharmacology 2019; 44:1542-1551. [PMID: 30771789 PMCID: PMC6785150 DOI: 10.1038/s41386-019-0345-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/28/2022]
Abstract
Major depressive disorder (MDD) is the most prevalent mental disorder that affects more than 200 million people worldwide. Recent large-scale genome-wide association studies (GWAS) have identified multiple risk variants that show robust association with MDD. Nevertheless, how the identified risk variants confer risk of MDD remains largely unknown. To identify risk variants that are associated with gene expression in human brain and to identify genes whose expression change may contribute to the susceptibility of MDD, we systematically integrated the genetic associations from a large-scale MDD GWAS (N = 480,359) and brain expression quantitative trait loci (eQTL) data (N = 494) using a Bayesian statistical framework (Sherlock). Sherlock integrative analysis showed that FLOT1 was significantly associated with MDD (P = 6.02 × 10-6), suggesting that risk variants may contribute to MDD susceptibility through affecting FLOT1 expression. We further examined the expression level of FLOT1 in MDD cases and controls and found that FLOT1 was significantly upregulated in brains and peripheral blood of MDD cases compared with controls (European sample). Interestingly, we found that FLOT1 expression was also significantly upregulated in peripheral blood of first-episode drug-naive MDD cases compared with controls (P = 1.01 × 10-7, Chinese sample). Our study identified FLOT1 as a novel MDD risk gene whose expression level may play a role in MDD. In addition, our findings also suggest that risk variants may confer risk of MDD through affecting expression of FLOT1. Further functional investigation of FLOT1 may provide new insights for MDD pathogenesis.
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Affiliation(s)
- Jingmei Zhong
- The first people’s hospital of Yunnan province, Psychiatry Department, 650032 Kunming, Yunnan China
| | - Shiwu Li
- 0000000119573309grid.9227.eKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223 Kunming, Yunnan China ,Kunming College of Life Science, University of Chinese Academy of Sciences, 650204 Kunming, Yunnan China
| | - Wanli Zeng
- Yunnan Academy of Tobacco Science, 650106 Kunming, Yunnan China
| | - Xiaoyan Li
- 0000000119573309grid.9227.eKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223 Kunming, Yunnan China ,Kunming College of Life Science, University of Chinese Academy of Sciences, 650204 Kunming, Yunnan China
| | - Chunjie Gu
- The first people’s hospital of Yunnan province, Psychiatry Department, 650032 Kunming, Yunnan China
| | - Jiewei Liu
- 0000000119573309grid.9227.eKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223 Kunming, Yunnan China
| | - Xiong-Jian Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223, Kunming, Yunnan, China. .,Kunming College of Life Science, University of Chinese Academy of Sciences, 650204, Kunming, Yunnan, China. .,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, 650223, Kunming, China. .,KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223, Kunming, Yunnan, China.
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10
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Baig N, Li Z, Lu J, Chen H, Yu S, Li T, Niu Z, Niu J. Clinical significance and comparison of flotillin 1 expression in left and right colon cancer. Oncol Lett 2019; 18:997-1004. [PMID: 31423159 PMCID: PMC6607386 DOI: 10.3892/ol.2019.10401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 09/28/2018] [Indexed: 12/29/2022] Open
Abstract
Flotillin 1 (FLOT1) is increasingly implicated in various types of cancer, and has been reported to influence tumorigenesis and cancer progression, leading to poor prognosis for survival time; however, its expression in colorectal cancer (CRC) and its influence on various clinicopathological parameters of this disease remain unknown. In the present study, FLOT1 expression and its effect on different clinicopathological parameters were assessed immunohistochemically and histologically in 81 CRC and 81 non-tumorous colon tissue samples. The immunohistochemical staining was scored semi-quantitatively. The association of FLOT1 expression with various parameters and its effect on overall survival time was also assessed. FLOT1 was upregulated in the CRC tissue, with increased expression in the right colon tissue samples compared with those of left colon. Increased FLOT1 expression in CRC tissue samples was associated with tumor volume, differentiation, tumor grade and poor overall survival time. In the right colon tissue samples in particular, there was a notable association with tumor volume and grade, indicating its effect on proliferation and tumor stage at this site. A multivariate Cox regression hazard analysis revealed that only tumor grade and differentiation were the independent predictors of overall survival time in patients with CRC. Together, the results of the present study suggest that FLOT1 serves important functions in the proliferation and progression of CRC, contributes to decreased survival time, and may serve as a novel therapeutic target for the treatment of CRC.
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Affiliation(s)
- Nadia Baig
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Zequn Li
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jing Lu
- Department of Chemotherapy, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Haibin Chen
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Songyang Yu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Tianen Li
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Zhaojian Niu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jun Niu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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11
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Zhang L, Mao Y, Mao Q, Fan W, Xu L, Chen Y, Xu L, Wang J. FLOT1 promotes tumor development, induces epithelial-mesenchymal transition, and modulates the cell cycle by regulating the Erk/Akt signaling pathway in lung adenocarcinoma. Thorac Cancer 2019; 10:909-917. [PMID: 30838797 PMCID: PMC6449277 DOI: 10.1111/1759-7714.13027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/05/2019] [Accepted: 02/05/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND FLOT1 is a scaffolding protein of lipid rafts that is believed to be involved in numerous cellular processes. However, few studies have explored the function of FLOT1 in the development of lung adenocarcinoma (LUAD) and the underlying mechanisms of FLOT1 activity. METHODS FLOT1 knockdown and overexpression models were constructed via lentivirus. Cell growth, invasion, migration, and apoptosis were detected to evaluate the role of FLOT1 in LUAD development. Epithelial-mesenchymal transition (EMT) and cell cycle regulatory markers were then examined. Finally, the influence of FLOT1 on the Erk/Akt signaling pathway was investigated. RESULTS FLOT1 promoted cell growth, invasion, and migration and inhibited cell apoptosis. In addition, FLOT1 induced EMT and modulated the cell cycle by activating the Erk/Akt signaling pathway. CONCLUSION The findings indicate a significant role of FLOT1 in LUAD development. Targeting FLOT1 may be a potential therapeutic strategy for LUAD.
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Affiliation(s)
- Louqian Zhang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer ResearchNanjing Medical University Affiliated Cancer HospitalNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchNanjingChina
| | - Yuan Mao
- Department of Hematology and Oncology, Department of Geriatric Lung Cancer Laboratory, Geriatric Hospital of Nanjing Medical UniversityJiangsu Province Geriatric HospitalNanjingChina
| | - Qixing Mao
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer ResearchNanjing Medical University Affiliated Cancer HospitalNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchNanjingChina
| | - Weifei Fan
- Department of Hematology and Oncology, Department of Geriatric Lung Cancer Laboratory, Geriatric Hospital of Nanjing Medical UniversityJiangsu Province Geriatric HospitalNanjingChina
| | - Li Xu
- Department of PathologyJiangsu Cancer HospitalNanjingChina
| | - Yan Chen
- Department of PathologyJiangsu Cancer HospitalNanjingChina
| | - Lin Xu
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer ResearchNanjing Medical University Affiliated Cancer HospitalNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchNanjingChina
| | - Jun Wang
- Department of Hematology and Oncology, Department of Geriatric Lung Cancer Laboratory, Geriatric Hospital of Nanjing Medical UniversityJiangsu Province Geriatric HospitalNanjingChina
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Guo AY, Liang XJ, Liu RJ, Li XX, Bi W, Zhou LY, Tang CE, Yan A, Chen ZC, Zhang PF. Flotilin-1 promotes the tumorigenicity and progression of malignant phenotype in human lung adenocarcinoma. Cancer Biol Ther 2018; 18:715-722. [PMID: 28825855 DOI: 10.1080/15384047.2017.1360445] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Lung adenocarcinoma (LUAD) accounts for the most common histological subtype of lung cancer which remains the leading cause of cancer death worldwide. The discovery of more sensitive and specific novel target biomarkers for predicting the development and progression of LUAD is imperative. Flotillin-1 (Flot-1) has been reported to have important roles in the progression of several tumor types but not been reported in the progression of LUAD. Here, we demonstrated that the expression of flotillin-1 was upregulated in 5 LUAD cells. Moreover, multiple approaches were used to explore the tumorigenicity of flotillin-1 in LUAD cell lines. The expression levels of flotillin-1 were analyzed by immunoblotting after overexpression and siRNA-based knockdown. Cell proliferation, scratch wound healing, transwell migration and matrigel invasion and xenograft tumor growth assays were used to determine the role of flotillin-1 in LUAD progression. Downregulation of flotillin-1 reversed, whereas upregulation of flotillin-1 enhanced, the malignant phenotype of LUAD cells in vitro. Consistently, cells with flotillin-1 knockdown formed smaller tumors in nude mice than cells transfected with the empty vector. Furthermore, the control group demonstrated significantly more tumorigenic effects compared to the flotillin-1-silenced group in the xenograft model of LUAD. In all, there draws a conclusion that flotillin-1 is a tumorigenic protein that plays an important role in promoting the proliferation and tumorigenicity of LUAD, suggesting that flotillin-1 may represent a novel the therapeutic target to LUAD.
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Affiliation(s)
- Ai Yun Guo
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Xu Jun Liang
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Rui Jie Liu
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Xiao Xiao Li
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Wu Bi
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Liu Ying Zhou
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Can E Tang
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Ang Yan
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Zhu Chu Chen
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Peng Fei Zhang
- a Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University , Changsha , Hunan , China
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Liang Z, Wang X, Xu X, Xie B, Ji A, Meng S, Li S, Zhu Y, Wu J, Hu Z, Lin Y, Zheng X, Xie L, Liu B. MicroRNA-608 inhibits proliferation of bladder cancer via AKT/FOXO3a signaling pathway. Mol Cancer 2017; 16:96. [PMID: 28549468 PMCID: PMC5446711 DOI: 10.1186/s12943-017-0664-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 05/18/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Current evidence indicates that miR-608 is widely down-regulated in various malignant tumors including liver cancer, colon cancer, lung cancer and glioma, and acts as a tumor suppressor by inhibiting cell proliferation, invasion and migration or by promoting apoptosis. The specific biological function of miR-608 in bladder cancer is still unknown. METHODS qRT-PCR and Chromogenic in Situ Hybridization (CISH) was conducted to assess the expression of miR-608 in paired BCa tissues and adjacent non-tumor bladder urothelial tissues. Bisulfite sequencing PCR was used for DNA methylation analysis. CCK-8, colony formation and flow cytometry assays were performed, and a xenograft model was studied. Immunohistochemistry staining was performed with peroxidase and DAB. The target of miR-608 was validated with a dual-luciferase reporter assay, quantitative RT-PCR, and Western blotting. RESULTS miR-608 is frequently down-regulated in human BCa tissues. The methylation status of CpG islands is involved in the regulation of miR-608 expression. Overexpression of miR-608 inhibits the proliferation and tumorigenesis of BCa cells in vitro and in vivo. Additionally, up-regulation of miR-608 in BCa cells induces G1-phase arrest through AKT/FOXO3a signaling. In contrast, down-regulation of miR-608 promotes proliferation and cell cycle progression in BCa cells. Moreover, the expression of FLOT1 was directly inhibited by miR-608, the down-regulation of FLOT1 induced by siFLOT1 could be significantly reversed by miR-608 inhibitor. Similarly, the up-regulation of FLOT1 by FLOT1 overexpression plasmid (pFLOT1) could also reverse the suppressed cell proliferation caused by miR-608. CONCLUSIONS miR-608 is a potential tumor suppressor in BCa, and the restoration of miR-608 might be a promising therapeutic option for BCa.
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Affiliation(s)
- Zhen Liang
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Xiao Wang
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Xin Xu
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Bo Xie
- Department of Urology, TongDe Hospital of Zhejiang Province, Hangzhou, China
| | - Alin Ji
- Department of Urology, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Shuai Meng
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Shiqi Li
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Yi Zhu
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Jian Wu
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Zhenghui Hu
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Yiwei Lin
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Xiangyi Zheng
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Liping Xie
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
| | - Ben Liu
- Department of Urology, the First Affiliated Hospital, Zhejiang University, School of Medicine, 79, Qingchun Road, 310003 Hangzhou, Zhejiang China
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Ou YX, Liu FT, Chen FY, Zhu ZM. Prognostic value of Flotillin-1 expression in patients with solid tumors. Oncotarget 2017; 8:52665-52677. [PMID: 28881760 PMCID: PMC5581059 DOI: 10.18632/oncotarget.17075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/16/2017] [Indexed: 12/01/2022] Open
Abstract
Background In numerous studies, Flotillin-1 was reported to be involved in tumor progression, indicating prognosis in various types of cancer. However, the results were inconsistent. Results A total of 2473 patients from 13 articles were included. The results indicated that: (1) Patients detected with high expression level of Flotillin-1 protein had a significantly shorter OS (HR =1.64; 95%CI: 1.39-1.88), statistical significance was also observed in subgroup meta-analyses stratified by the cancer type, nationality, detecting method, cutoff value, analysis type, sample size and publication date. (2) Patients with high Flotillin-1 protein expression level had a poorer DFS (HR = 2.49; 95%CI: 1.64-3.35), a worse RFS(HR = 3.26; 95%CI: 1.10-5.43) and a potential shorter PFS(HR = 1.84; 95%CI: 0.81-2.87). (3) The pooled odds ratios (ORs) showed that increased Flotillin-1 level was also related to lymph node metastasis (OR =6.30; 95% CI: 3.15-12.59), distant metastasis (OR =6.02; 95% CI: 1.50-24.06) and more advanced TNM stage (OR =4.69; 95% CI: 2.74-8.03). Materials and methods A comprehensive retrieval was performed in multiple databases, including PubMed, Embase, Web of Science and CNKI. The relevant articles were screened for investigating the association between increased Flotillin-1 expression level and prognosis. Additionally, clinicopathological features data was also extracted from these studies. Conclusions High expression level of Flotillin-1 protein was correlated with poorer clinical outcome. It might serve as a prognostic biomarker and a potential predictive factor of clinicopathology in various tumors. Further well-designed clinical studies should be performed to verify the clinical utility of Flotillin-1 in human solid tumors.
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Affiliation(s)
- Yang-Xi Ou
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, P. R. China
| | - Fang-Teng Liu
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, P. R. China.,Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi Province, P. R. China
| | - Fang-Ying Chen
- The Health Centers of Fengzhou Town, Quanzhou 36200, Fujian Province, P. R. China
| | - Zheng-Ming Zhu
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, P. R. China
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XIE GUI, LI JINLONG, CHEN JINGSONG, TANG XUEWEI, WU SHAOQING, LIAO CAN. Knockdown of flotillin-2 impairs the proliferation of breast cancer cells through modulation of Akt/FOXO signaling. Oncol Rep 2015; 33:2285-90. [DOI: 10.3892/or.2015.3826] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 02/13/2015] [Indexed: 11/06/2022] Open
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