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Wu D, Wu F, Li B, Huang W, Wang D. EZH2 promotes the expression of LPA1 by mediating microRNA-139 promoter methylation to accelerate the development of ovarian cancer. Cancer Cell Int 2020; 20:551. [PMID: 33292225 PMCID: PMC7670614 DOI: 10.1186/s12935-020-01622-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022] Open
Abstract
Background It has been known that ovarian cancer (OC) is a leading cause for women mortality globally. We aimed to analyze the underlying mechanism supporting that enhancer of zeste homolog 2 (EZH2) affected the development of OC via the involvement of microRNA-139 (miR-139)/transforming growth factor beta (TGF-β)/lysophosphatidic acid-1 (LPA1) axis. Methods High expression patterns of EZH2 and miR-139 and low LPA1 expression pattern in OC were evaluated using RT-qPCR and immunoblotting, while their correlation was assessed by the Spearman’s rank and Pearson’s correlation coefficient. Subsequently, dual-luciferase reporter gene assay was applied to validate the binding relationship between miR-139 and LPA1, while H3K27me enrichment was assessed by ChIP assay. After that, the effects of altered expression of EZH2, miR-194, or LPA1 on the cell biological functions and the expression pattern of TGF-related factors were evaluated. Results We found that EZH2 repressed the miR-139 expression pattern by recruiting H3K27me3 to promote miR-139 promoter methylation, while silencing of EZH2 suppressed in vitro cancer progression by increasing miR-139. LPA1 was a target of miR-139, and could activate the TGF-β signaling pathway, which hastened the OC progression. miR-139-targeted inhibition of LPA1 and LPA1-activated TGF-β signaling pathway were evidenced to be critical mechanisms underlying the effects of EZH2 on OC cells. Lastly, silencing of EZH2 inhibited the xenograft growth in vivo. Conclusions EZH2 could down-regulate miR-139 expression pattern by recruiting H3K27me3 to promote the miR-139 promoter methylation and activate the TGF-β pathway by up-regulating LPA1, which contributed to the progression of OC. The current study may possess potentials for OC treatment.
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Affiliation(s)
- Dongbo Wu
- Department of Obstetrics and Gynecology, The First Hospital of Changsha, Changsha, 410000, People's Republic of China
| | - Fanglan Wu
- Department of Clinical Laboratory, The First Hospital of Changsha, Changsha, 410005, People's Republic of China
| | - Birong Li
- Department of Gynecology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), No. 61, Western Jiefang Road, Changsha, 410000, Hunan, People's Republic of China
| | - Wei Huang
- Department of Gynecology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), No. 61, Western Jiefang Road, Changsha, 410000, Hunan, People's Republic of China.
| | - Donglian Wang
- Department of Gynecology, The Maternal and Child Health Hospital of Hunan Province, Changsha, 410000, People's Republic of China
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2
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Lakshmi SP, Reddy AT, Reddy RC. Transforming growth factor β suppresses peroxisome proliferator-activated receptor γ expression via both SMAD binding and novel TGF-β inhibitory elements. Biochem J 2017; 474:1531-1546. [PMID: 28100650 PMCID: PMC5544130 DOI: 10.1042/bcj20160943] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/13/2017] [Accepted: 01/17/2017] [Indexed: 12/26/2022]
Abstract
Transforming growth factor β (TGF-β) contributes to wound healing and, when dysregulated, to pathological fibrosis. TGF-β and the anti-fibrotic nuclear hormone receptor peroxisome proliferator-activated receptor γ (PPARγ) repress each other's expression, and such PPARγ down-regulation is prominent in fibrosis and mediated, via previously unknown SMAD-signaling mechanisms. Here, we show that TGF-β induces the association of SMAD3 with both SMAD4, needed for translocation of the complex into the nucleus, and the essential context-sensitive co-repressors E2F4 and p107. The complex mediates TGF-β-induced repression by binding to regulatory elements in the target promoter. In the PPARG promoter, we found that the SMAD3-SMAD4 complex binds both to a previously unknown consensus TGF-β inhibitory element (TIE) and also to canonical SMAD-binding elements (SBEs). Furthermore, the TIE and SBEs independently mediated the partial repression of PPARG transcription, the first demonstration of a TIE and SBEs functioning within the same promoter. Also, TGF-β-treated fibroblasts contained SMAD complexes that activated a SMAD target gene in addition to those repressing PPARG transcription, the first finding of such dual activity within the same cell. These findings describe in detail novel mechanisms by which TGF-β represses PPARG transcription, thereby facilitating its own pro-fibrotic activity.
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Affiliation(s)
- Sowmya P Lakshmi
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, U.S.A
- Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA 15240, U.S.A
| | - Aravind T Reddy
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, U.S.A
- Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA 15240, U.S.A
| | - Raju C Reddy
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, U.S.A.
- Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA 15240, U.S.A
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3
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Shao H, Mohamed EM, Xu GG, Waters M, Jing K, Ma Y, Zhang Y, Spiegel S, Idowu MO, Fang X. Carnitine palmitoyltransferase 1A functions to repress FoxO transcription factors to allow cell cycle progression in ovarian cancer. Oncotarget 2016; 7:3832-46. [PMID: 26716645 PMCID: PMC4826173 DOI: 10.18632/oncotarget.6757] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 11/26/2015] [Indexed: 01/19/2023] Open
Abstract
Cancer cells rely on hyperactive de novo lipid synthesis for maintaining malignancy. Recent studies suggest involvement in cancer of fatty acid oxidation, a process functionally opposite to lipogenesis. A mechanistic link from lipid catabolism to oncogenic processes is yet to be established. Carnitine palmitoyltransferase 1 (CPT1) is a rate-limiting enzyme of fatty acid β-oxidation (FAO) that catalyzes the transfer of long-chain acyl group of the acyl-CoA ester to carnitine, thereby shuttling fatty acids into the mitochondrial matrix for β-oxidation. In the present study, we demonstrated that CPT1A was highly expressed in most ovarian cancer cell lines and primary ovarian serous carcinomas. Overexpression of CPT1A correlated with a poor overall survival of ovarian cancer patients. Inactivation of CPT1A decreased cellular ATP levels and induced cell cycle arrest at G0/G1, suggesting that ovarian cancer cells depend on or are addicted to CPT1A-mediated FAO for cell cycle progression. CPT1A deficiency also suppressed anchorage-independent growth and formation of xenografts from ovarian cancer cell lines. The cyclin-dependent kinase inhibitor p21WAF1 (p21) was identified as most consistently and robustly induced cell cycle regulator upon inactivation of CPT1A. Furthermore, p21 was transcriptionally upregulated by the FoxO transcription factors, which were in turn phosphorylated and activated by AMP-activated protein kinase and the mitogen-activated protein kinases JNK and p38. Our results established the oncogenic relevance of CPT1A and a mechanistic link from lipid catabolism to cell cycle regulation, suggesting that CPT1A could be a prognostic biomarker and rational target for therapeutic intervention of cancer.
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Affiliation(s)
- Huanjie Shao
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA.,Institute of Biological Sciences, Shaanxi Normal University, Xi'an, China
| | - Esraa M Mohamed
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Guoyan G Xu
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Michael Waters
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Kai Jing
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Yibao Ma
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Yan Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Sarah Spiegel
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Michael O Idowu
- Department of Pathology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Xianjun Fang
- Departments of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
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4
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Mukherjee A, Ma Y, Yuan F, Gong Y, Fang Z, Mohamed EM, Berrios E, Shao H, Fang X. Lysophosphatidic Acid Up-Regulates Hexokinase II and Glycolysis to Promote Proliferation of Ovarian Cancer Cells. Neoplasia 2016; 17:723-734. [PMID: 26476080 PMCID: PMC4611075 DOI: 10.1016/j.neo.2015.09.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/04/2015] [Accepted: 09/15/2015] [Indexed: 02/04/2023] Open
Abstract
Lysophosphatidic acid (LPA), a blood-borne lipid mediator, is present in elevated concentrations in ascites of ovarian cancer patients and other malignant effusions. LPA is a potent mitogen in cancer cells. The mechanism linking LPA signal to cancer cell proliferation is not well understood. Little is known about whether LPA affects glucose metabolism to accommodate rapid proliferation of cancer cells. Here we describe that in ovarian cancer cells, LPA enhances glycolytic rate and lactate efflux. A real time PCR-based miniarray showed that hexokinase II (HK2) was the most dramatically induced glycolytic gene to promote glycolysis in LPA-treated cells. Analysis of the human HK2 gene promoter identified the sterol regulatory element-binding protein as the primary mediator of LPA-induced HK2 transcription. The effects of LPA on HK2 and glycolysis rely on LPA2, an LPA receptor subtype overexpressed in ovarian cancer and many other malignancies. We further examined the general role of growth factor-induced glycolysis in cell proliferation. Like LPA, epidermal growth factor (EGF) elicited robust glycolytic and proliferative responses in ovarian cancer cells. Insulin-like growth factor 1 (IGF-1) and insulin, however, potently stimulated cell proliferation but only modestly induced glycolysis. Consistent with their differential effects on glycolysis, LPA and EGF-dependent cell proliferation was highly sensitive to glycolytic inhibition while the growth-promoting effect of IGF-1 or insulin was more resistant. These results indicate that LPA- and EGF-induced cell proliferation selectively involves up-regulation of HK2 and glycolytic metabolism. The work is the first to implicate LPA signaling in promotion of glucose metabolism in cancer cells.
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Affiliation(s)
- Abir Mukherjee
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Yibao Ma
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Fang Yuan
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Yongling Gong
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Zhenyu Fang
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Esraa M Mohamed
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Erika Berrios
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Huanjie Shao
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Xianjun Fang
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298.
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5
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A causal link from ALK to hexokinase II overexpression and hyperactive glycolysis in EML4-ALK-positive lung cancer. Oncogene 2016; 35:6132-6142. [PMID: 27132509 PMCID: PMC5093092 DOI: 10.1038/onc.2016.150] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/05/2016] [Accepted: 03/24/2016] [Indexed: 12/19/2022]
Abstract
A high rate of aerobic glycolysis is a hallmark of malignant transformation. Accumulating evidence suggests that diverse regulatory mechanisms mediate this cancer-associated metabolic change seen in a wide spectrum of cancer. The echinoderm microtubule associated protein-like 4-anaplastic lymphoma kinase (EML4-ALK) fusion protein is found in approximately 3-7% of non-small cell lung carcinomas (NSCLC). Molecular evidence and therapeutic effectiveness of FDA-approved ALK inhibitors indicated that EML4-ALK is a driving factor of lung tumorigenesis. A recent clinical study showed that NSCLC harboring EML4-ALK rearrangements displayed higher glucose metabolism compared to EML4-ALK-negative NSCLC. In the current work, we presented evidence that EML4-ALK is coupled to overexpression of hexokinase II (HK2), one of the rate-limiting enzymes of the glycolytic pathway. The link from EML4-ALK to HK2 upregulation is essential for a high rate of glycolysis and proliferation of EML4-ALK-rearranged NSCLC cells. We identified hypoxia-inducible factor 1α (HIF1α) as a key transcription factor to drive HK2 gene expression in normoxia in these cells. EML4-ALK induced hypoxia-independent but glucose-dependent accumulation of HIF1α protein via both transcriptional activation of HIF1α mRNA and the PI3K-AKT pathway to enhance HIF1α protein synthesis. The EML4-ALK-mediated upregulation of HIF1α, HK2 and glycolytic metabolism was also highly active in vivo as demonstrated by FDG-PET imaging of xenografts grown from EML4-ALK-positive NSCLC cells. Our data reveal a novel EML4-ALK-HIF1α-HK2 cascade to enhance glucose metabolism in EML4-ALK-positive NSCLC.
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Meshcheryakova A, Svoboda M, Tahir A, Köfeler HC, Triebl A, Mungenast F, Heinze G, Gerner C, Zimmermann P, Jaritz M, Mechtcheriakova D. Exploring the role of sphingolipid machinery during the epithelial to mesenchymal transition program using an integrative approach. Oncotarget 2016; 7:22295-323. [PMID: 26967245 PMCID: PMC5008362 DOI: 10.18632/oncotarget.7947] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 02/20/2016] [Indexed: 12/30/2022] Open
Abstract
The epithelial to mesenchymal transition (EMT) program is activated in epithelial cancer cells and facilitates their ability to metastasize based on enhanced migratory, proliferative, anti-apoptotic, and pluripotent capacities. Given the fundamental impact of sphingolipid machinery to each individual process, the sphingolipid-related mechanisms might be considered among the most prominent drivers/players of EMT; yet, there is still limited knowledge. Given the complexity of the interconnected sphingolipid system, which includes distinct sphingolipid mediators, their synthesizing enzymes, receptors and transporters, we herein apply an integrative approach for assessment of the sphingolipid-associated mechanisms underlying EMT program. We created the sphingolipid-/EMT-relevant 41-gene/23-gene signatures which were applied to denote transcriptional events in a lung cancer cell-based EMT model. Based on defined 35-gene sphingolipid/EMT-attributed signature of regulated genes, we show close associations between EMT markers, genes comprising the sphingolipid network at multiple levels and encoding sphingosine 1-phosphate (S1P)-/ceramide-metabolizing enzymes, S1P and lysophosphatidic acid (LPA) receptors and S1P transporters, pluripotency genes and inflammation-related molecules, and demonstrate the underlying biological pathways and regulators. Mass spectrometry-based sphingolipid analysis revealed an EMT-attributed shift towards increased S1P and LPA accompanied by reduced ceramide levels. Notably, using transcriptomics data across various cell-based perturbations and neoplastic tissues (24193 arrays), we identified the sphingolipid/EMT signature primarily in lung adenocarcinoma tissues; besides, bladder, colorectal and prostate cancers were among the top-ranked. The findings also highlight novel regulatory associations between influenza virus and the sphingolipid/EMT-associated mechanisms. In sum, data propose the multidimensional contribution of sphingolipid machinery to pathological EMT and may yield new biomarkers and therapeutic targets.
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Affiliation(s)
- Anastasia Meshcheryakova
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Martin Svoboda
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Ammar Tahir
- Institute of Analytical Chemistry, University of Vienna, Vienna, Austria
- Mass Spectrometry Center, University of Vienna, Vienna, Austria
| | - Harald C. Köfeler
- Core Facility for Mass Spectrometry, Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Alexander Triebl
- Core Facility for Mass Spectrometry, Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Felicitas Mungenast
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Georg Heinze
- Section for Clinical Biometrics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University Vienna, Vienna, Austria
| | - Christopher Gerner
- Institute of Analytical Chemistry, University of Vienna, Vienna, Austria
- Mass Spectrometry Center, University of Vienna, Vienna, Austria
| | | | - Markus Jaritz
- Research Institute of Molecular Pathology, Vienna Biocenter, Vienna, Austria
| | - Diana Mechtcheriakova
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
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7
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Nepomuceno AI, Shao H, Jing K, Ma Y, Petitte JN, Idowu MO, Muddiman DC, Fang X, Hawkridge AM. In-depth LC-MS/MS analysis of the chicken ovarian cancer proteome reveals conserved and novel differentially regulated proteins in humans. Anal Bioanal Chem 2015; 407:6851-63. [PMID: 26159569 DOI: 10.1007/s00216-015-8862-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 06/11/2015] [Accepted: 06/15/2015] [Indexed: 12/12/2022]
Abstract
Ovarian cancer (OVC) remains the most lethal gynecological malignancy in the world due to the combined lack of early-stage diagnostics and effective therapeutic strategies. The development and application of advanced proteomics technology and new experimental models has created unique opportunities for translational studies. In this study, we investigated the ovarian cancer proteome of the chicken, an emerging experimental model of OVC that develops ovarian tumors spontaneously. Matched plasma, ovary, and oviduct tissue biospecimens derived from healthy, early-stage OVC, and late-stage OVC birds were quantitatively characterized by label-free proteomics. Over 2600 proteins were identified in this study, 348 of which were differentially expressed by more than twofold (p ≤ 0.05) in early- and late-stage ovarian tumor tissue specimens relative to healthy ovarian tissues. Several of the 348 proteins are known to be differentially regulated in human cancers including B2M, CLDN3, EPCAM, PIGR, S100A6, S100A9, S100A11, and TPD52. Of particular interest was ovostatin 2 (OVOS2), a novel 165-kDa protease inhibitor found to be strongly upregulated in chicken ovarian tumors (p = 0.0005) and matched plasma (p = 0.003). Indeed, RT-quantitative PCR and Western blot analysis demonstrated that OVOS2 mRNA and protein were also upregulated in multiple human OVC cell lines compared to normal ovarian epithelia (NOE) cells and immunohistochemical staining confirmed overexpression of OVOS2 in primary human ovarian cancers relative to non-cancerous tissues. Collectively, these data provide the first evidence for involvement of OVOS2 in the pathogenesis of both chicken and human ovarian cancer.
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Affiliation(s)
- Angelito I Nepomuceno
- W.M. Keck FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, 2620 Yarbrough Dr., Box 8204, Raleigh, NC, 27695, USA
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8
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Zhang L, Li W, Ni J, Wu J, Liu J, Zhang Z, Zhang Y, Li H, Shi Y, Teves ME, Song S, Strauss JF, Zhang Z. RC/BTB2 is essential for formation of primary cilia in mammalian cells. Cytoskeleton (Hoboken) 2015; 72:171-81. [PMID: 25762510 DOI: 10.1002/cm.21214] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 03/02/2015] [Accepted: 03/04/2015] [Indexed: 01/19/2023]
Abstract
RC/BTB2 is a binding partner of sperm associated antigen 16S (SPAG16S), which is a regulator of spermiogenesis in mice, a process during which sperm flagella are formed. The expression of Rc/btb2 is also regulated by multicilin, a protein that controls ciliogenesis. Given that mouse Rc/btb2 mRNA is not only expressed in tissues bearing motile cilia, but also in tissues without motile cilia, we investigated whether RC/BTB2 plays a role in the general process of ciliogenesis by studying two cell lines that have primary cilia, NIH3T3, and IMCD3. We discovered that the subcellular localization of RC/BTB2 in the NIH3T3 and IMCD3 cells encompasses the pathway for ciliogenesis. RC/BTB2 was found in the Golgi bodies and centrosomes, two key structures essential for normal ciliogenesis. Knockdown of Rc/btb2 gene expression in these cell lines disrupted ciliogenesis. The percentage of cells with primary cilia was significantly reduced in stable cell lines transduced with specific Rc/btb2 shRNA viruses as compared to the control cells. When cilia were formed in the knockdown cells, they were significantly shorter than those in the control cells. Knockdown of Rc/btb2 expression did not affect cell proliferation and the cell cycle. Exogenous expression of RC/BTB2 in these stable knockdown cells restored ciliogenesis. These findings suggest that RC/BTB2 is a necessary component of the process of formation of primary cilia in somatic cells, perhaps through the transportation of cargos from Golgi bodies to centrosomes for cilia assembling.
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Affiliation(s)
- Ling Zhang
- School of Public Health, Wuhan University of Science and Technology, Wuhan, Hubei, China
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Wei Li
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Jin Ni
- Department of Radiation Medicine, Second Military Medical University, Shanghai, China
| | - Jinghua Wu
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Junping Liu
- School of Public Health, Wuhan University of Science and Technology, Wuhan, Hubei, China
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Zhengang Zhang
- Department of Infectious Diseases, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yong Zhang
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
- Department of Dermatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hongfei Li
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Yuqin Shi
- School of Public Health, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Maria E Teves
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Shizheng Song
- School of Public Health, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Jerome F Strauss
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Zhibing Zhang
- School of Public Health, Wuhan University of Science and Technology, Wuhan, Hubei, China
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, Virginia
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