1
|
Wang S, Wu X, Wang H, Song S, Hu Y, Guo Y, Chang S, Cheng Y, Zeng S. Role of FBXL5 in redox homeostasis and spindle assembly during oocyte maturation in mice. FASEB J 2023; 37:e23080. [PMID: 37462473 DOI: 10.1096/fj.202300244rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/01/2023] [Accepted: 06/26/2023] [Indexed: 07/21/2023]
Abstract
As an E3 ubiquitin ligase, F-box and leucine-rich repeat protein 5 (FBXL5) participates in diverse biologic processes. However, the role of Fbxl5 in mouse oocyte meiotic maturation has not yet been fully elucidated. The present study revealed that mouse oocytes depleted of Fbxl5 were unable to complete meiosis, as Fbxl5 silencing led to oocyte meiotic failure with reduced rates of GVBD and polar body extrusion. In addition, Fbxl5 depletion induced aberrant mitochondrial dynamics as we noted the overproduction of reactive oxygen species (ROS) and the accumulation of phosphorylated γH2AX with Fbxl5 knockdown. We also found that Fbxl5-KD led to the abnormal accumulation of CITED2 proteins in mouse oocytes. Our in vitro ubiquitination assay showed that FBXL5 interacted with CITED2 and that it mediated the degradation of CITED2 protein through the ubiquitination-proteasome pathway. Collectively, our data revealed critical functions of FBXL5 in redox hemostasis and spindle assembly during mouse oocyte maturation.
Collapse
Affiliation(s)
- Shiwei Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xuan Wu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Han Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shuang Song
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yuling Hu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yajun Guo
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Siyu Chang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yuanweilu Cheng
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shenming Zeng
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| |
Collapse
|
2
|
Wei N, Chao-yang G, Wen-ming Z, Ze-yuan L, Yong-qiang S, Shun-bai Z, Kai Z, Yan-chao M, Hai-hong Z. A ubiquitin-related gene signature for predicting prognosis and constructing molecular subtypes in osteosarcoma. Front Pharmacol 2022; 13:904448. [PMID: 36060009 PMCID: PMC9428517 DOI: 10.3389/fphar.2022.904448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Ubiquitination is medicated by three classes of enzymes and has been proven to involve in multiple cancer biological processes. Moreover, dysregulation of ubiquitination has received a growing body of attention in osteosarcoma (OS) tumorigenesis and treatment. Therefore, our study aimed to identify a ubiquitin-related gene signature for predicting prognosis and immune landscape and constructing OS molecular subtypes. Methods: Therapeutically Applicable Research to Generate Effective Treatments (TARGET) was regarded as the training set through univariate Cox regression, Lasso Cox regression, and multivariate Cox regression. The GSE21257 and GSE39055 served as the validation set to verify the predictive value of the signature. CIBERSORT was performed to show immune infiltration and the immune microenvironment. The NMF algorithm was used to construct OS molecular subtypes. Results: In this study, we developed a ubiquitin-related gene signature including seven genes (UBE2L3, CORO6, DCAF8, DNAI1, FBXL5, UHRF2, and WDR53), and the gene signature had a good performance in predicting prognosis for OS patients (AUC values at 1/3/5 years were 0.957, 0.890, and 0.919). Multivariate Cox regression indicated that the risk score model and prognosis stage were also independent prognostic prediction factors. Moreover, analyses of immune cells and immune-related functions showed a significant difference in different risk score groups and the three clusters. The drug sensitivity suggested that IC50 of proteasome inhibitor (MG-132) showed a notable significance between the risk score groups (p < 0.05). Through the NMF algorithm, we obtained the three clusters, and cluster 3 showed better survival outcomes. The expression of ubiquitin-related genes (CORO6, UBE2L3, FBXL5, DNAI1, and DCAF8) showed an obvious significance in normal and osteosarcoma tissues. Conclusion: We developed a novel ubiquitin-related gene signature which showed better predictive prognostic ability for OS and provided additional information on chemotherapy and immunotherapy. The OS molecular subtypes would also give a useful guide for individualized therapy.
Collapse
Affiliation(s)
- Nan Wei
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Gong Chao-yang
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Zhou Wen-ming
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Lei Ze-yuan
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Shi Yong-qiang
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Zhang Shun-bai
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Zhang Kai
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
| | - Ma Yan-chao
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
- *Correspondence: Ma Yan-chao, ; Zhang Hai-hong,
| | - Zhang Hai-hong
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, China
- Lanzhou University Second Hospital, Lanzhou, China
- *Correspondence: Ma Yan-chao, ; Zhang Hai-hong,
| |
Collapse
|
3
|
A gain-of-function mutation in CITED2 is associated with congenital heart disease. Mutat Res 2021; 822:111741. [PMID: 33706167 DOI: 10.1016/j.mrfmmm.2021.111741] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 02/26/2021] [Indexed: 12/20/2022]
Abstract
CITED2 is a transcription co-activator that interacts with TFAP2 and CBP/ P300 transcription factors to regulate the proliferation and differentiation of the cardiac progenitor cells. It acts upstream to NODAL-PITX2 pathways and regulates the left-right asymmetry. Both human genetic and model organism studies have shown that altered expression of CITED2 causes various forms of congenital heart disease. Therefore, we sought to screen the coding region of CITED2 to identify rare genetic variants and assess their impact on the structure and function of the protein. Here, we have screened 271 non-syndromic, sporadic CHD cases by Sanger's sequencing method and detected a non-synonymous variant (c.301C>T, p.P101S) and two synonymous variants (c.21C>A, p.A7A; c.627C>G, p.P209P). The non-synonymous variant c.301C>T (rs201639244) is a rare variant with a minor allele frequency of 0.00011 in the gnomAD browser and 0.0018 in the present study. in vitro analysis has demonstrated that p.P101S mutation upregulates the expression of downstream target genes Gata4, Mef2c, Nfatc1&2, Nodal, Pitx2, and Tbx5 in P19 cells. Luciferase reporter assay also demonstrates enhanced activation of downstream target promoters. Further, in silico analyses implicate that increased activity of mutant CITED2 is possibly due to phosphorylation of Serine residue by proline-directed kinases. Homology modeling and alignment analysis have also depicted differences in hydrogen bonding and tertiary structures of wild-type versus mutant protein. The impact of synonymous variations on the mRNA structure of CITED2has been analyzed by Mfold and relative codon bias calculations. Mfold results have revealed that both the synonymous variants can alter the mRNA structure and stability. Relative codon usage analysis has suggested that the rate of translation is attenuated due to these variations. Altogether, our results from genetic screening as well as in vitro and in silico studies support a possible role of nonsynonymous and synonymous mutations in CITED2contributing to pathogenesis of CHD.
Collapse
|
4
|
Zhu L, Zhou Q, He L, Chen L. IRP2-Hif1α/Hif2α signaling: a novel mechanism of metabolic switch from aerobic glycolysis to oxidative phosphorylation. Acta Biochim Biophys Sin (Shanghai) 2020; 52:1175-1177. [PMID: 32813008 DOI: 10.1093/abbs/gmaa088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/22/2020] [Indexed: 01/18/2023] Open
Affiliation(s)
- Li Zhu
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Qionglin Zhou
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Lu He
- Department of Pharmacy, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| |
Collapse
|
5
|
Sweeney MA, Iakova P, Maneix L, Shih FY, Cho HE, Sahin E, Catic A. The ubiquitin ligase Cullin-1 associates with chromatin and regulates transcription of specific c-MYC target genes. Sci Rep 2020; 10:13942. [PMID: 32811853 PMCID: PMC7435197 DOI: 10.1038/s41598-020-70610-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/29/2020] [Indexed: 12/16/2022] Open
Abstract
Transcription is regulated through a dynamic interplay of DNA-associated proteins, and the composition of gene-regulatory complexes is subject to continuous adjustments. Protein alterations include post-translational modifications and elimination of individual polypeptides. Spatially and temporally controlled protein removal is, therefore, essential for gene regulation and accounts for the short half-life of many transcription factors. The ubiquitin-proteasome system is responsible for site- and target-specific ubiquitination and protein degradation. Specificity of ubiquitination is conferred by ubiquitin ligases. Cullin-RING complexes, the largest family of ligases, require multi-unit assembly around one of seven cullin proteins. To investigate the direct role of cullins in ubiquitination of DNA-bound proteins and in gene regulation, we analyzed their subcellular locations and DNA-affinities. We found CUL4A and CUL7 to be largely excluded from the nucleus, whereas CUL4B was primarily nuclear. CUL1,2,3, and 5 showed mixed cytosolic and nuclear expression. When analyzing chromatin affinity of individual cullins, we discovered that CUL1 preferentially associated with active promoter sequences and co-localized with 23% of all DNA-associated protein degradation sites. CUL1 co-distributed with c-MYC and specifically repressed nuclear-encoded mitochondrial and splicing-associated genes. These studies underscore the relevance of spatial control in chromatin-associated protein ubiquitination and define a novel role for CUL1 in gene repression.
Collapse
Affiliation(s)
- Melanie A Sweeney
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
| | - Polina Iakova
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
| | - Laure Maneix
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
| | - Fu-Yuan Shih
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
| | - Hannah E Cho
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Rice University Undergraduate School of Social Sciences, Houston, TX, USA
| | - Ergun Sahin
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Andre Catic
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA.
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA.
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA.
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA.
- Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
| |
Collapse
|
6
|
Fernandes MT, Calado SM, Mendes-Silva L, Bragança J. CITED2 and the modulation of the hypoxic response in cancer. World J Clin Oncol 2020; 11:260-274. [PMID: 32728529 PMCID: PMC7360518 DOI: 10.5306/wjco.v11.i5.260] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/13/2020] [Accepted: 05/13/2020] [Indexed: 02/06/2023] Open
Abstract
CITED2 (CBP/p300-interacting transactivator with Glu/Asp-rich C-terminal domain, 2) is a ubiquitously expressed protein exhibiting a high affinity for the CH1 domain of the transcriptional co-activators CBP/p300, for which it competes with hypoxia-inducible factors (HIFs). CITED2 is particularly efficient in the inhibition of HIF-1α-dependent transcription in different contexts, ranging from organ development and metabolic homeostasis to tissue regeneration and immunity, being also potentially involved in various other physiological processes. In addition, CITED2 plays an important role in inhibiting HIF in some diseases, including kidney and heart diseases and type 2-diabetes. In the particular case of cancer, CITED2 either functions by promoting or suppressing cancer development depending on the context and type of tumors. For instance, CITED2 overexpression promotes breast and prostate cancers, as well as acute myeloid leukemia, while its expression is downregulated to sustain colorectal cancer and hepatocellular carcinoma. In addition, the role of CITED2 in the maintenance of cancer stem cells reveals its potential as a target in non-small cell lung carcinoma and acute myeloid leukemia, for example. But besides the wide body of evidence linking both CITED2 and HIF signaling to carcinogenesis, little data is available regarding CITED2 role as a negative regulator of HIF-1α specifically in cancer. Therefore, comprehensive studies exploring further the interactions of these two important mediators in cancer-specific models are sorely needed and this can potentially lead to the development of novel targeted therapies.
Collapse
Affiliation(s)
- Mónica T Fernandes
- School of Health, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
| | - Sofia M Calado
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
| | - Leonardo Mendes-Silva
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
- Department of Biomedical Sciences and Medicine, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
| | - José Bragança
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
- Department of Biomedical Sciences and Medicine, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
| |
Collapse
|
7
|
Yumimoto K, Yamauchi Y, Nakayama KI. F-Box Proteins and Cancer. Cancers (Basel) 2020; 12:cancers12051249. [PMID: 32429232 PMCID: PMC7281081 DOI: 10.3390/cancers12051249] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 12/20/2022] Open
Abstract
Controlled protein degradation is essential for the operation of a variety of cellular processes including cell division, growth, and differentiation. Identification of the relations between ubiquitin ligases and their substrates is key to understanding the molecular basis of cancer development and to the discovery of novel targets for cancer therapeutics. F-box proteins function as the substrate recognition subunits of S-phase kinase-associated protein 1 (SKP1)−Cullin1 (CUL1)−F-box protein (SCF) ubiquitin ligase complexes. Here, we summarize the roles of specific F-box proteins that have been shown to function as tumor promoters or suppressors. We also highlight proto-oncoproteins that are targeted for ubiquitylation by multiple F-box proteins, and discuss how these F-box proteins are deployed to regulate their cognate substrates in various situations.
Collapse
|
8
|
Tekcham DS, Chen D, Liu Y, Ling T, Zhang Y, Chen H, Wang W, Otkur W, Qi H, Xia T, Liu X, Piao HL, Liu H. F-box proteins and cancer: an update from functional and regulatory mechanism to therapeutic clinical prospects. Am J Cancer Res 2020; 10:4150-4167. [PMID: 32226545 PMCID: PMC7086354 DOI: 10.7150/thno.42735] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/04/2020] [Indexed: 12/16/2022] Open
Abstract
E3 ubiquitin ligases play a critical role in cellular mechanisms and cancer progression. F-box protein is the core component of the SKP1-cullin 1-F-box (SCF)-type E3 ubiquitin ligase and directly binds to substrates by various specific domains. According to the specific domains, F-box proteins are further classified into three sub-families: 1) F-box with leucine rich amino acid repeats (FBXL); 2) F-box with WD 40 amino acid repeats (FBXW); 3) F-box only with uncharacterized domains (FBXO). Here, we summarize the substrates of F-box proteins, discuss the important molecular mechanism and emerging role of F-box proteins especially from the perspective of cancer development and progression. These findings will shed new light on malignant tumor progression mechanisms, and suggest the potential role of F-box proteins as cancer biomarkers and therapeutic targets for future cancer treatment.
Collapse
|
9
|
Repurposing Antibacterial AM404 as a Potential Anticancer Drug for Targeting Colorectal Cancer Stem-Like Cells. Cancers (Basel) 2019; 12:cancers12010106. [PMID: 31906201 PMCID: PMC7017077 DOI: 10.3390/cancers12010106] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/22/2019] [Accepted: 12/27/2019] [Indexed: 12/14/2022] Open
Abstract
Tumour-promoting inflammation is involved in colorectal cancer (CRC) development and therapeutic resistance. However, the antibiotics and antibacterial drugs and signalling that regulate the potency of anticancer treatment upon forced differentiation of cancer stem-like cell (CSC) are not fully defined yet. We screened an NIH-clinical collection of the small-molecule compound library of antibacterial/anti-inflammatory agents that identified potential candidate drugs targeting CRC-SC for differentiation. Selected compounds were validated in both in vitro organoids and ex vivo colon explant models for their differentiation induction, impediment on neoplastic cell growth, and to elucidate the mechanism of their anticancer activity. We initially focused on AM404, an anandamide uptake inhibitor. AM404 is a metabolite of acetaminophen with antibacterial activity, which showed high potential in preventing CRC-SC features, such as stemness/de-differentiation, migration and drug-resistance. Furthermore, AM404 suppressed the expression of FBXL5 E3-ligase, where AM404 sensitivity was mimicked by FBXL5-knockout. This study uncovers a new molecular mechanism for AM404-altering FBXL5 oncogene which mediates chemo-resistance and CRC invasion, thereby proposes to repurpose antibacterial AM404 as an anticancer agent.
Collapse
|
10
|
Muto Y, Moroishi T, Ichihara K, Nishiyama M, Shimizu H, Eguchi H, Moriya K, Koike K, Mimori K, Mori M, Katayama Y, Nakayama KI. Disruption of FBXL5-mediated cellular iron homeostasis promotes liver carcinogenesis. J Exp Med 2019; 216:950-965. [PMID: 30877170 PMCID: PMC6446870 DOI: 10.1084/jem.20180900] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 01/15/2019] [Accepted: 02/25/2019] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular iron overload elicited by ablation of the iron-sensing ubiquitin ligase FBXL5 promotes liver carcinogenesis induced by exposure to a chemical carcinogen or hepatitis virus, suggesting that FBXL5 is a previously unrecognized oncosuppressor in liver carcinogenesis in mice. Hepatic iron overload is a risk factor for progression of hepatocellular carcinoma (HCC), although the molecular mechanisms underlying this association have remained unclear. We now show that the iron-sensing ubiquitin ligase FBXL5 is a previously unrecognized oncosuppressor in liver carcinogenesis in mice. Hepatocellular iron overload elicited by FBXL5 ablation gave rise to oxidative stress, tissue damage, inflammation, and compensatory proliferation of hepatocytes and to consequent promotion of liver carcinogenesis induced by exposure to a chemical carcinogen. The tumor-promoting outcome of FBXL5 deficiency in the liver was also found to be effective in a model of virus-induced HCC. FBXL5-deficient mice thus constitute the first genetically engineered mouse model of liver carcinogenesis promoted by iron overload. In addition, dysregulation of FBXL5-mediated cellular iron homeostasis was found to be associated with poor prognosis in human HCC, suggesting that FBXL5 plays a key role in defense against hepatocarcinogenesis.
Collapse
Affiliation(s)
- Yoshiharu Muto
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Toshiro Moroishi
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Kazuya Ichihara
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Masaaki Nishiyama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Hideyuki Shimizu
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kyoji Moriya
- Department of Infection Control and Prevention, The University of Tokyo Hospital, Tokyo, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Koshi Mimori
- Department of Surgery, Kyushu University, Beppu Hospital, Beppu, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yuta Katayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Keiichi I Nakayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| |
Collapse
|
11
|
Jang SM, Redon CE, Aladjem MI. Chromatin-Bound Cullin-Ring Ligases: Regulatory Roles in DNA Replication and Potential Targeting for Cancer Therapy. Front Mol Biosci 2018; 5:19. [PMID: 29594129 PMCID: PMC5859106 DOI: 10.3389/fmolb.2018.00019] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 02/12/2018] [Indexed: 12/14/2022] Open
Abstract
Cullin-RING (Really Interesting New Gene) E3 ubiquitin ligases (CRLs), the largest family of E3 ubiquitin ligases, are functional multi-subunit complexes including substrate receptors, adaptors, cullin scaffolds, and RING-box proteins. CRLs are responsible for ubiquitination of ~20% of cellular proteins and are involved in diverse biological processes including cell cycle progression, genome stability, and oncogenesis. Not surprisingly, cullins are deregulated in many diseases and instances of cancer. Recent studies have highlighted the importance of CRL-mediated ubiquitination in the regulation of DNA replication/repair, including specific roles in chromatin assembly and disassembly of the replication machinery. The development of novel therapeutics targeting the CRLs that regulate the replication machinery and chromatin in cancer is now an attractive therapeutic strategy. In this review, we summarize the structure and assembly of CRLs and outline their cellular functions and their diverse roles in cancer, emphasizing the regulatory functions of nuclear CRLs in modulating the DNA replication machinery. Finally, we discuss the current strategies for targeting CRLs against cancer in the clinic.
Collapse
Affiliation(s)
- Sang-Min Jang
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Christophe E Redon
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Mirit I Aladjem
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| |
Collapse
|
12
|
Essential role of FBXL5-mediated cellular iron homeostasis in maintenance of hematopoietic stem cells. Nat Commun 2017; 8:16114. [PMID: 28714470 PMCID: PMC5520054 DOI: 10.1038/ncomms16114] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 05/25/2017] [Indexed: 12/17/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are maintained in a hypoxic niche to limit oxidative stress. Although iron elicits oxidative stress, the importance of iron homeostasis in HSCs has been unknown. Here we show that iron regulation by the F-box protein FBXL5 is required for HSC self-renewal. Conditional deletion of Fbxl5 in mouse HSCs results in cellular iron overload and a reduced cell number. Bone marrow transplantation reveals that FBXL5-deficient HSCs are unable to reconstitute the hematopoietic system of irradiated recipients as a result of stem cell exhaustion. Transcriptomic analysis shows abnormal activation of oxidative stress responses and the cell cycle in FBXL5-deficient mouse HSCs as well as downregulation of FBXL5 expression in HSCs of patients with myelodysplastic syndrome. Suppression of iron regulatory protein 2 (IRP2) accumulation in FBXL5-deficient mouse HSCs restores stem cell function, implicating IRP2 as a potential therapeutic target for human hematopoietic diseases associated with FBXL5 downregulation.
Collapse
|
13
|
Charneca J, Matias AC, Escapa AL, Fernandes C, Alves A, Santos JMA, Nascimento R, Bragança J. Ectopic expression of CITED2 prior to reprogramming, promotes and homogenises the conversion of somatic cells into induced pluripotent stem cells. Exp Cell Res 2017; 358:290-300. [PMID: 28684114 DOI: 10.1016/j.yexcr.2017.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/28/2017] [Accepted: 07/01/2017] [Indexed: 02/07/2023]
Abstract
Cited2 plays crucial roles in mouse embryonic stem cells self-renewal, the initiation of the somatic reprogramming process into induced pluripotent stem cells (iPSC) and the suppression of cell senescence. Here, we investigated the potential of CITED2 expression in combination with the Oct4, Sox2, Klf4 and c-Myc factors for reprogramming of primary mouse embryonic fibroblasts (MEF) at passage 2 and 4. The ectopic CITED2 expression in primary MEF prior to the onset of the reprogramming process, generated iPSC with less variability in the expression of endogenous pluripotency-related genes. In contrast, part of the MEF reprogrammed without ectopic expression of CITED2 at passage 4 originated partially reprogrammed iPSC or pre-iPSC. However, the overexpression of CITED2 in the pre-iPSC was insufficient to complete the reprogramming process into iPSC. These results indicated that ectopic CITED2 expression at the onset of the reprogramming process in combination with the reprogramming factors promotes a complete and homogeneous conversion of somatic cells into iPSC.
Collapse
Affiliation(s)
- João Charneca
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Ana Catarina Matias
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Ana Luisa Escapa
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Catarina Fernandes
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - André Alves
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - João M A Santos
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Rita Nascimento
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - José Bragança
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal; ABC - Algarve Biomedical Centre, 8005-139 Faro, Portugal.
| |
Collapse
|
14
|
Affiliation(s)
- Guanghong Jia
- Diabetes and Cardiovascular Research Center, University of Missouri, Columbia, MO
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO
| | - James R Sowers
- Diabetes and Cardiovascular Research Center, University of Missouri, Columbia, MO
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO
- Dalton Cardiovascular Center, University of Missouri, Columbia, MO
| |
Collapse
|
15
|
Pacheco-Leyva I, Matias AC, Oliveira DV, Santos JMA, Nascimento R, Guerreiro E, Michell AC, van De Vrugt AM, Machado-Oliveira G, Ferreira G, Domian I, Bragança J. CITED2 Cooperates with ISL1 and Promotes Cardiac Differentiation of Mouse Embryonic Stem Cells. Stem Cell Reports 2016; 7:1037-1049. [PMID: 27818139 PMCID: PMC5161512 DOI: 10.1016/j.stemcr.2016.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 10/05/2016] [Accepted: 10/06/2016] [Indexed: 01/07/2023] Open
Abstract
The transcriptional regulator CITED2 is essential for heart development. Here, we investigated the role of CITED2 in the specification of cardiac cell fate from mouse embryonic stem cells (ESC). The overexpression of CITED2 in undifferentiated ESC was sufficient to promote cardiac cell emergence upon differentiation. Conversely, the depletion of Cited2 at the onset of differentiation resulted in a decline of ESC ability to generate cardiac cells. Moreover, loss of Cited2 expression impairs the expression of early mesoderm markers and cardiogenic transcription factors (Isl1, Gata4, Tbx5). The cardiogenic defects in Cited2-depleted cells were rescued by treatment with recombinant CITED2 protein. We showed that Cited2 expression is enriched in cardiac progenitors either derived from ESC or mouse embryonic hearts. Finally, we demonstrated that CITED2 and ISL1 proteins interact physically and cooperate to promote ESC differentiation toward cardiomyocytes. Collectively, our results show that Cited2 plays a pivotal role in cardiac commitment of ESC. Overexpression of CITED2 in ESC promotes cardiogenesis upon differentiation Cited2 depletion reduces ESC ability to generate cardiac cells Cited2 expression is enriched in cardiac progenitors CITED2 and ISL1 cooperate to promote ESC differentiation toward cardiomyocytes
Collapse
Affiliation(s)
- Ivette Pacheco-Leyva
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Ana Catarina Matias
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Daniel V Oliveira
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - João M A Santos
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Rita Nascimento
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Eduarda Guerreiro
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Anna C Michell
- Division of Cardiovascular Medicine, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - Annebel M van De Vrugt
- Cardiovascular Research Center, Massachusetts General Hospital, Charles River Plaza/CPZN 3200, 185 Cambridge Street, Boston, MA 02114-2790, USA; Harvard Medical School, 250 Longwood Avenue, Boston, MA 02115, USA; Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Gisela Machado-Oliveira
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal
| | - Guilherme Ferreira
- DSM Biotechnology Center, Alexander Fleminglaan 1, 2613 AX Delft, the Netherlands
| | - Ibrahim Domian
- Cardiovascular Research Center, Massachusetts General Hospital, Charles River Plaza/CPZN 3200, 185 Cambridge Street, Boston, MA 02114-2790, USA; Harvard Medical School, 250 Longwood Avenue, Boston, MA 02115, USA
| | - José Bragança
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal; Centre for Biomedical Research - CBMR, University of Algarve, Campus of Gambelas, Building 8, Room 2.22, 8005-139 Faro, Portugal; ABC - Algarve Biomedical Centre, 8005-139 Faro, Portugal.
| |
Collapse
|
16
|
Zheng N, Wang Z, Wei W. Ubiquitination-mediated degradation of cell cycle-related proteins by F-box proteins. Int J Biochem Cell Biol 2016; 73:99-110. [PMID: 26860958 PMCID: PMC4798898 DOI: 10.1016/j.biocel.2016.02.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/05/2016] [Accepted: 02/05/2016] [Indexed: 02/06/2023]
Abstract
F-box proteins, subunits of SKP1-cullin 1-F-box protein (SCF) type of E3 ubiquitin ligase complexes, have been validated to play a crucial role in governing various cellular processes such as cell cycle, cell proliferation, apoptosis, migration, invasion and metastasis. Recently, a wealth of evidence has emerged that F-box proteins is critically involved in tumorigenesis in part through governing the ubiquitination and subsequent degradation of cell cycle proteins, and dysregulation of this process leads to aberrant cell cycle progression and ultimately, tumorigenesis. Therefore, in this review, we describe the critical role of F-box proteins in the timely regulation of cell cycle. Moreover, we discuss how F-box proteins involve in tumorigenesis via targeting cell cycle-related proteins using biochemistry studies, engineered mouse models, and pathological gene alternations. We conclude that inhibitors of F-box proteins could have promising therapeutic potentials in part through controlling of aberrant cell cycle progression for cancer therapies.
Collapse
Affiliation(s)
- Nana Zheng
- The Cyrus Tang Hematology Center and Collaborative Innovation Center of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital, Soochow University, Suzhou 215123, China
| | - Zhiwei Wang
- The Cyrus Tang Hematology Center and Collaborative Innovation Center of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital, Soochow University, Suzhou 215123, China; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave., Boston, MA 02215, USA.
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave., Boston, MA 02215, USA.
| |
Collapse
|
17
|
Recalcati S, Gammella E, Cairo G. New perspectives on the molecular basis of the interaction between oxygen homeostasis and iron metabolism. HYPOXIA 2015; 3:93-103. [PMID: 27774486 PMCID: PMC5045093 DOI: 10.2147/hp.s83537] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Oxygen and iron are two elements closely related from a (bio)chemical point of view. Moreover, they share the characteristic of being indispensable for life, while also being potentially toxic. Therefore, their level is strictly monitored, and sophisticated pathways have evolved to face variations in either element. In addition, the expression of proteins involved in iron and oxygen metabolism is mainly controlled by a complex interplay of proteins that sense both iron levels and oxygen availability (ie, prolyl hydroxylases, hypoxia inducible factors, and iron regulatory proteins), and in turn activate feedback mechanisms to re-establish homeostasis. In this review, we describe how cells and organisms utilize these intricate networks to regulate responses to changes in oxygen and iron levels. We also explore the role of these pathways in some pathophysiological settings.
Collapse
Affiliation(s)
- Stefania Recalcati
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Elena Gammella
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Gaetano Cairo
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| |
Collapse
|
18
|
Randle SJ, Laman H. F-box protein interactions with the hallmark pathways in cancer. Semin Cancer Biol 2015; 36:3-17. [PMID: 26416465 DOI: 10.1016/j.semcancer.2015.09.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 09/18/2015] [Accepted: 09/23/2015] [Indexed: 12/24/2022]
Abstract
F-box proteins (FBP) are the substrate specifying subunit of Skp1-Cul1-FBP (SCF)-type E3 ubiquitin ligases and are responsible for directing the ubiquitination of numerous proteins essential for cellular function. Due to their ability to regulate the expression and activity of oncogenes and tumour suppressor genes, FBPs themselves play important roles in cancer development and progression. In this review, we provide a comprehensive overview of FBPs and their targets in relation to their interaction with the hallmarks of cancer cell biology, including the regulation of proliferation, epigenetics, migration and invasion, metabolism, angiogenesis, cell death and DNA damage responses. Each cancer hallmark is revealed to have multiple FBPs which converge on common signalling hubs or response pathways. We also highlight the complex regulatory interplay between SCF-type ligases and other ubiquitin ligases. We suggest six highly interconnected FBPs affecting multiple cancer hallmarks, which may prove sensible candidates for therapeutic intervention.
Collapse
Affiliation(s)
- Suzanne J Randle
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, United Kingdom
| | - Heike Laman
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, United Kingdom.
| |
Collapse
|