1
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Zhuo R, Zhang Z, Chen Y, Li G, Du S, Guo X, Yang R, Tao Y, Li X, Fang F, Xie Y, Wu D, Yang Y, Yang C, Yin H, Qian G, Wang H, Yu J, Jia S, Zhu F, Feng C, Wang J, Xu Y, Li Z, Shi L, Wang X, Pan J, Wang J. CDK5RAP3 is a novel super-enhancer-driven gene activated by master TFs and regulates ER-Phagy in neuroblastoma. Cancer Lett 2024; 591:216882. [PMID: 38636893 DOI: 10.1016/j.canlet.2024.216882] [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: 09/14/2023] [Revised: 03/30/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
Super enhancers (SEs) are genomic regions comprising multiple closely spaced enhancers, typically occupied by a high density of cell-type-specific master transcription factors (TFs) and frequently enriched in key oncogenes in various tumors, including neuroblastoma (NB), one of the most prevalent malignant solid tumors in children originating from the neural crest. Cyclin-dependent kinase 5 regulatory subunit-associated protein 3 (CDK5RAP3) is a newly identified super-enhancer-driven gene regulated by master TFs in NB; however, its function in NB remains unclear. Through an integrated study of publicly available datasets and microarrays, we observed a significantly elevated CDK5RAP3 expression level in NB, associated with poor patient prognosis. Further research demonstrated that CDK5RAP3 promotes the growth of NB cells, both in vitro and in vivo. Mechanistically, defective CDK5RAP3 interfered with the UFMylation system, thereby triggering endoplasmic reticulum (ER) phagy. Additionally, we provide evidence that CDK5RAP3 maintains the stability of MEIS2, a master TF in NB, and in turn, contributes to the high expression of CDK5RAP3. Overall, our findings shed light on the molecular mechanisms by which CDK5RAP3 promotes tumor progression and suggest that its inhibition may represent a novel therapeutic strategy for NB.
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Affiliation(s)
- Ran Zhuo
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China; Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215025, China
| | - Zimu Zhang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Yanling Chen
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Gen Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Shibei Du
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Xinyi Guo
- Department of Infection Management, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215000, China
| | - Randong Yang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China; Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215025, China
| | - Yanfang Tao
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Xiaolu Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Fang Fang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Yi Xie
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Di Wu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Yang Yang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Chun Yang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Hongli Yin
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Guanghui Qian
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Hairong Wang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Juanjuan Yu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Siqi Jia
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Frank Zhu
- Division of Hematology, Department of Internal Medicine, The Ohio State University, China
| | - Chenxi Feng
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Jianwei Wang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Yunyun Xu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Zhiheng Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China
| | - Lei Shi
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, China
| | - Xiaodong Wang
- Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215025, China
| | - Jian Pan
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China.
| | - Jian Wang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215003, China; Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215025, China.
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2
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Zhou X, Mahdizadeh SJ, Le Gallo M, Eriksson LA, Chevet E, Lafont E. UFMylation: a ubiquitin-like modification. Trends Biochem Sci 2024; 49:52-67. [PMID: 37945409 DOI: 10.1016/j.tibs.2023.10.004] [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: 04/29/2023] [Revised: 09/28/2023] [Accepted: 10/06/2023] [Indexed: 11/12/2023]
Abstract
Post-translational modifications (PTMs) add a major degree of complexity to the proteome and are essential controllers of protein homeostasis. Amongst the hundreds of PTMs identified, ubiquitin and ubiquitin-like (UBL) modifications are recognized as key regulators of cellular processes through their ability to affect protein-protein interactions, protein stability, and thus the functions of their protein targets. Here, we focus on the most recently identified UBL, ubiquitin-fold modifier 1 (UFM1), and the machinery responsible for its transfer to substrates (UFMylation) or its removal (deUFMylation). We first highlight the biochemical peculiarities of these processes, then we develop on how UFMylation and its machinery control various intertwined cellular processes and we highlight some of the outstanding research questions in this emerging field.
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Affiliation(s)
- Xingchen Zhou
- Inserm U1242, University of Rennes, Rennes, France; Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Sayyed J Mahdizadeh
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Matthieu Le Gallo
- Inserm U1242, University of Rennes, Rennes, France; Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Leif A Eriksson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Eric Chevet
- Inserm U1242, University of Rennes, Rennes, France; Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France.
| | - Elodie Lafont
- Inserm U1242, University of Rennes, Rennes, France; Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France.
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3
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Yan H, Zhou T, Wang Y, Liu Z, Ali I, Sheng L, Jiang Q, Li T, Xiang M, Li P, Zhang W, Teng Y, Li H, Liu Y, Cai Y. CDK5RAP3, a key defender of udder, modulates NLRP3 inflammasome activation by regulating autophagolysosome degradation in S. agalactiae-infected mastitis. Int J Biol Macromol 2023; 234:123714. [PMID: 36806767 DOI: 10.1016/j.ijbiomac.2023.123714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/10/2023] [Accepted: 02/11/2023] [Indexed: 02/21/2023]
Abstract
Streptococcus agalactiae, as one of the main pathogens of clinical and subclinical mastitis, affects animal welfare and leads to huge economic losses to farms due to the sharp decline in milk yield. However, both the real pathogenic mechanisms of S. agalactiae-induced mastitis and the regulator which controls the inflammation and autophagy are largely unknown. Served as a substrate of ubiquitin-like proteins of E3 ligase, CDK5RAP3 is widely involved in the regulation of multiple signaling pathways. Our findings revealed that CDK5RAP3 was significantly down-regulated in mastitis infected by S. agalactiae. Surprisingly, inflammasome activation was triggered by CDK5RAP3 knockdown: up-regulated NLRP3, IL1β and IL6, and cleaved caspase1 promoting by NF-κB, thereby resulting in pyroptosis. Additionally, the accumulation of autophagy markers (LC3B and p62) after CDK5RAP3 knockdown suggested that the autophagolysosome degradation pathway was inhibited, thereby activating the NF-κB pathway and NLRP3 inflammasome. Hence, our findings suggest that downregulation or ablation of CDK5RAP3 inhibits autophagolysosome degradation, causes inflammation by activating the NF-κB /NLRP3 inflammasome, and triggers cell death. In conclusion, CDK5RAP3 holds the key to understanding the interaction between autophagy and immune responses, its anti-inflammatory role in this study will throw new light on the clinical drug discovery to cure S. agalactiae mastitis.
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Affiliation(s)
- Hongchen Yan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Tianci Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yongsheng Wang
- Department of Respiratory Medicine, Nanjing Drum Tower Hospital Affiliated to Medical school of Nanjing University, Nanjing 210008, China
| | - Zhengcheng Liu
- Department of Cardiovascular and Thoracic Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Ilyas Ali
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Le Sheng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Qiang Jiang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Tao Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Minghui Xiang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ping Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yong Teng
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Honglin Li
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yang Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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4
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Zhang J, Zhao Y, Zhang Y, Gao Y, Li S, Chang C, Gao X, Zhao J, Yang G. Alpha lipoic acid treatment in late middle age improves cognitive function: Proteomic analysis of the protective mechanisms in the hippocampus. Neurosci Lett 2023; 798:137098. [PMID: 36708754 DOI: 10.1016/j.neulet.2023.137098] [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: 12/14/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 01/26/2023]
Abstract
Alpha lipoic acid (ALA), a powerful antioxidant, has the potential to relieve age-related cognitive impairment and neurodegenerative disease. Clinical randomized controlled studies have demonstrated the cognitive improvement effects of lipoic acid in Alzheimer's disease (AD). In the present study, we examined the effects of ALA on cognitive function in ageing mice and its protective mechanisms. Eighteen-month-old male C57BL6/J mice received ALA or normal saline for 2 months. The Morris water maze test revealed improved cognitive function in animals that received ALA. Furthermore, tandem Mass Tags (TMT) based liquid chromotography with mass spectrometry/mass spectrometry (LC-MS/MS) was established to identify the target proteins. The results showed that 10 proteins were changed significantly. Gene Ontology (GO) analysis indicated that the upregulated proteins were enriched in terminal bouton, synaptic transmission and lipid transporter activity while the down-regulated proteins were involved in nuclear transcription factor-κB binding, apoptosis and mitogen-activated protein kinase binding. Based on the GO results, two upregulated proteins oxysterol-binding protein-related protein 10 (OSBPL10) and oligophrenin 1 (OPHN1), and one downregulated protein, CDK5 regulatory subunit-associated protein 3 (CDK5rap3), were validated through Western blotting. The results were consistent with the proteomic results. Modulation of synaptic transmission, lipid transporter activity and neuroinflammation appears to be the mechanisms of ALA in the aged brain.
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Affiliation(s)
- Jian Zhang
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Yuan Zhao
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Yidan Zhang
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Ya Gao
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Shuyue Li
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Cui Chang
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Xuan Gao
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Jingru Zhao
- Department of Neurology, Hebei General Hospital, Shijiazhuang 050000, China
| | - Guofeng Yang
- Department of Geriatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China.
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5
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Wang JB, Gao YX, Ye YH, Lin TX, Li P, Lin JX, Chen QY, Cao LL, Lin M, Tu RH, Lin JL, Huang ZN, Zheng HL, Xie JW, Zheng CH, Huang CM. CDK5RAP3 acts as a tumour suppressor in gastric cancer through the infiltration and polarization of tumour-associated macrophages. Cancer Gene Ther 2023; 30:22-37. [PMID: 35999359 PMCID: PMC9842504 DOI: 10.1038/s41417-022-00515-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 01/21/2023]
Abstract
We have demonstrated that CDK5RAP3 exerts a tumour suppressor effect in gastric cancer, but its role in regulating tumour-associated macrophages (TAMs) has not yet been reported. Here, we show that CDK5RAP3 is related to the infiltration and polarization of macrophages. It inhibits the polarization of TAMs to M2 macrophages and promotes the polarization of the M1 phenotype. CDK5RAP3 reduces the recruitment of circulating monocytes to infiltrate tumour tissue by inhibiting the CCL2/CCR2 axis in gastric cancer. Blocking CCR2 reduces the growth of xenograft tumours and the infiltration of monocytes. CDK5RAP3 inhibits the nuclear transcription of NF-κB, thereby reducing the secretion of the cytokines IL4 and IL10 and blocking the polarization of M2 macrophages. In addition, the absence of CDK5RAP3 in gastric cancer cells allows macrophages to secrete more MMP2 to promote the epithelial-mesenchymal transition (EMT) process of gastric cancer cells, thereby enhancing the invasion and migration ability. Our results imply that CDK5RAP3 may be involved in the regulation of immune activity in the tumour microenvironment and is expected to become a potential immunotherapy target for gastric cancer.
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Affiliation(s)
- Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - You-Xin Gao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Yin-Hua Ye
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Tong-Xing Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Ju-Li Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Ze-Ning Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Hua-Long Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. .,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China.
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. .,Fujian Key Laboratory of Tumour Microbiology, Fujian Medical University, Fuzhou, China.
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6
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Sulimenko V, Dráberová E, Dráber P. γ-Tubulin in microtubule nucleation and beyond. Front Cell Dev Biol 2022; 10:880761. [PMID: 36158181 PMCID: PMC9503634 DOI: 10.3389/fcell.2022.880761] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Microtubules composed of αβ-tubulin dimers are dynamic cytoskeletal polymers that play key roles in essential cellular processes such as cell division, organelle positioning, intracellular transport, and cell migration. γ-Tubulin is a highly conserved member of the tubulin family that is required for microtubule nucleation. γ-Tubulin, together with its associated proteins, forms the γ-tubulin ring complex (γ-TuRC), that templates microtubules. Here we review recent advances in the structure of γ-TuRC, its activation, and centrosomal recruitment. This provides new mechanistic insights into the molecular mechanism of microtubule nucleation. Accumulating data suggest that γ-tubulin also has other, less well understood functions. We discuss emerging evidence that γ-tubulin can form oligomers and filaments, has specific nuclear functions, and might be involved in centrosomal cross-talk between microtubules and microfilaments.
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Affiliation(s)
| | | | - Pavel Dráber
- *Correspondence: Vadym Sulimenko, ; Pavel Dráber,
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7
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Klebanovych A, Vinopal S, Dráberová E, Sládková V, Sulimenko T, Sulimenko V, Vosecká V, Macůrek L, Legido A, Dráber P. C53 Interacting with UFM1-Protein Ligase 1 Regulates Microtubule Nucleation in Response to ER Stress. Cells 2022; 11:cells11030555. [PMID: 35159364 PMCID: PMC8834445 DOI: 10.3390/cells11030555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/27/2022] [Accepted: 02/03/2022] [Indexed: 02/01/2023] Open
Abstract
ER distribution depends on microtubules, and ER homeostasis disturbance activates the unfolded protein response resulting in ER remodeling. CDK5RAP3 (C53) implicated in various signaling pathways interacts with UFM1-protein ligase 1 (UFL1), which mediates the ufmylation of proteins in response to ER stress. Here we find that UFL1 and C53 associate with γ-tubulin ring complex proteins. Knockout of UFL1 or C53 in human osteosarcoma cells induces ER stress and boosts centrosomal microtubule nucleation accompanied by γ-tubulin accumulation, microtubule formation, and ER expansion. C53, which is stabilized by UFL1, associates with the centrosome and rescues microtubule nucleation in cells lacking UFL1. Pharmacological induction of ER stress by tunicamycin also leads to increased microtubule nucleation and ER expansion. Furthermore, tunicamycin suppresses the association of C53 with the centrosome. These findings point to a novel mechanism for the relief of ER stress by stimulation of centrosomal microtubule nucleation.
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Affiliation(s)
- Anastasiya Klebanovych
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Stanislav Vinopal
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Eduarda Dráberová
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Vladimíra Sládková
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Tetyana Sulimenko
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Vadym Sulimenko
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Věra Vosecká
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Libor Macůrek
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
| | - Agustin Legido
- Section of Neurology, St. Christopher’s Hospital for Children, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19134, USA;
| | - Pavel Dráber
- Laboratory of Biology of Cytoskeleton, Institute of Molecular Genetics of the Czech Academy of Sciences, CZ 142 20 Prague, Czech Republic; (A.K.); (S.V.); (E.D.); (V.S.); (T.S.); (V.S.); (V.V.); (L.M.)
- Correspondence: ; Tel.: +420-241-062-632
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8
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Feng X, Jiang J, Sun L, Zhou Q. CDK5RAP3 acts as a putative tumor inhibitor in papillary thyroid carcinoma via modulation of Akt/GSK-3β/Wnt/β-catenin signaling. Toxicol Appl Pharmacol 2022; 440:115940. [DOI: 10.1016/j.taap.2022.115940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/14/2022] [Accepted: 02/21/2022] [Indexed: 02/07/2023]
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9
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Martínez‐Gil N, Ovejero D, Garcia‐Giralt N, Bruque CD, Mellibovsky L, Nogués X, Rabionet R, Grinberg D, Balcells S. Genetic analysis in a familial case with high bone mineral density suggests additive effects at two
loci. JBMR Plus 2022; 6:e10602. [PMID: 35434450 PMCID: PMC9009133 DOI: 10.1002/jbm4.10602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 12/24/2021] [Accepted: 01/16/2022] [Indexed: 11/21/2022] Open
Abstract
Osteoporosis is the most common bone disease, characterized by a low bone mineral density (BMD) and increased risk of fracture. At the other end of the BMD spectrum, some individuals present strong, fracture‐resistant, bones. Both osteoporosis and high BMD are heritable and their genetic architecture encompasses polygenic inheritance of common variants and some cases of monogenic highly penetrant variants in causal genes. We have investigated the genetics of high BMD in a family segregating this trait in an apparently Mendelian dominant pattern. We searched for rare causal variants by whole‐exome sequencing in three affected and three nonaffected family members. Using this approach, we have identified 38 rare coding variants present in the proband and absent in the three individuals with normal BMD. Although we have found four variants shared by the three affected members of the family, we have not been able to relate any of these to the high‐BMD phenotype. In contrast, we have identified missense variants in two genes, VAV3 and ADGRE5, each shared by two of out of three affected members, whose loss of function fits with the phenotype of the family. In particular, the proband, a woman displaying the highest BMD (sum Z‐score = 7), carries both variants, whereas the other two affected members carry one each. VAV3 encodes a guanine‐nucleotide‐exchange factor with an important role in osteoclast activation and function. Although no previous cases of VAV3 mutations have been reported in humans, Vav3 knockout (KO) mice display dense bones, similarly to the high‐BMD phenotype present in our family. The ADGRE5 gene encodes an adhesion G protein‐coupled receptor expressed in osteoclasts whose KO mouse displays increased trabecular bone volume. Combined, these mouse and human data highlight VAV3 and ADGRE5 as novel putative high‐BMD genes with additive effects, and potential therapeutic targets for osteoporosis. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Núria Martínez‐Gil
- Department of Genetics, Microbiology and Statistics Faculty of Biology, Universitat de Barcelona, CIBERER, IBUB, IRSJD Barcelona Spain
| | - Diana Ovejero
- Musculoskeletal Research Group, IMIM (Hospital del Mar Medical Research Institute), Centro de Investigación Biomédica en Red en Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII Barcelona Spain
| | - Natalia Garcia‐Giralt
- Musculoskeletal Research Group, IMIM (Hospital del Mar Medical Research Institute), Centro de Investigación Biomédica en Red en Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII Barcelona Spain
| | - Carlos David Bruque
- Unidad de Conocimiento Traslacional Hospitalaria Patagónica, Hospital de Alta Complejidad SAMIC El Calafate Santa Cruz Argentina
| | - Leonardo Mellibovsky
- Musculoskeletal Research Group, IMIM (Hospital del Mar Medical Research Institute), Centro de Investigación Biomédica en Red en Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII Barcelona Spain
| | - Xavier Nogués
- Musculoskeletal Research Group, IMIM (Hospital del Mar Medical Research Institute), Centro de Investigación Biomédica en Red en Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII Barcelona Spain
| | - Raquel Rabionet
- Department of Genetics, Microbiology and Statistics Faculty of Biology, Universitat de Barcelona, CIBERER, IBUB, IRSJD Barcelona Spain
| | - Daniel Grinberg
- Department of Genetics, Microbiology and Statistics Faculty of Biology, Universitat de Barcelona, CIBERER, IBUB, IRSJD Barcelona Spain
| | - Susanna Balcells
- Department of Genetics, Microbiology and Statistics Faculty of Biology, Universitat de Barcelona, CIBERER, IBUB, IRSJD Barcelona Spain
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10
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CDK5RAP3, a New BRCA2 Partner That Regulates DNA Repair, Is Associated with Breast Cancer Survival. Cancers (Basel) 2022; 14:cancers14020353. [PMID: 35053516 PMCID: PMC8773632 DOI: 10.3390/cancers14020353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/27/2021] [Accepted: 10/30/2021] [Indexed: 02/01/2023] Open
Abstract
BRCA2 is essential for homologous recombination DNA repair. BRCA2 mutations lead to genome instability and increased risk of breast and ovarian cancer. Similarly, mutations in BRCA2-interacting proteins are also known to modulate sensitivity to DNA damage agents and are established cancer risk factors. Here we identify the tumor suppressor CDK5RAP3 as a novel BRCA2 helical domain-interacting protein. CDK5RAP3 depletion induced DNA damage resistance, homologous recombination and single-strand annealing upregulation, and reduced spontaneous and DNA damage-induced genomic instability, suggesting that CDK5RAP3 negatively regulates double-strand break repair in the S-phase. Consistent with this cellular phenotype, analysis of transcriptomic data revealed an association between low CDK5RAP3 tumor expression and poor survival of breast cancer patients. Finally, we identified common genetic variations in the CDK5RAP3 locus as potentially associated with breast and ovarian cancer risk in BRCA1 and BRCA2 mutation carriers. Our results uncover CDK5RAP3 as a critical player in DNA repair and breast cancer outcomes.
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11
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Cheng Y, Niu Z, Cai Y, Zhang W. Emerging role of UFMylation in secretory cells involved in the endocrine system by maintaining ER proteostasis. Front Endocrinol (Lausanne) 2022; 13:1085408. [PMID: 36743909 PMCID: PMC9894094 DOI: 10.3389/fendo.2022.1085408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/13/2022] [Indexed: 01/21/2023] Open
Abstract
Ubiquitin-fold modifier 1 (UFM1) is a ubiquitin-like molecule (UBL) discovered almost two decades ago, but our knowledge about the cellular and molecular mechanisms of this novel protein post-translational modification is still very fragmentary. In this review, we first summarize the core enzymes and factors involved in the UFMylation cascade, which, similar to ubiquitin, is consecutively catalyzed by UFM1-activating enzyme 5 (UBA5), UFM1-conjugating enzyme 1 (UFC1) and UFM1-specific ligase 1 (UFL1). Inspired by the substantial implications of UFM1 machinery in the secretory pathway, we next concentrate on the puzzling role of UFMylation in maintaining ER protein homeostasis, intending to illustrate the underlying mechanisms and future perspectives. At last, given a robust ER network is a hallmark of healthy endocrine secretory cells, we emphasize the function of UFM1 modification in physiology and pathology in the context of endocrine glands pancreas and female ovaries, aiming to provide precise insight into other internal glands of the endocrine system.
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Affiliation(s)
- Yun Cheng
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Zikang Niu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Wei Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Wei Zhang,
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12
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Zhou J, Ma X, Xu L, Liang Q, Mao J, Liu J, Wang M, Yuan J, Cong YS. Genomic profiling of the UFMylation family genes identifies UFSP2 as a potential tumour suppressor in colon cancer. Clin Transl Med 2021; 11:e642. [PMID: 34923774 PMCID: PMC8684770 DOI: 10.1002/ctm2.642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/20/2021] [Accepted: 10/27/2021] [Indexed: 01/16/2023] Open
Affiliation(s)
- Junzhi Zhou
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Xiaohe Ma
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Lu Xu
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Qian Liang
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Jian Mao
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Jiang Liu
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Miao Wang
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
| | - Jiao Yuan
- Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yu-Sheng Cong
- Key Laboratory of Aging and Cancer Biology of Zhejiang Province, School of Basic Medicine, Hangzhou Normal University, 2318 Yu hang tang Rd, Hangzhou, Zhejiang, 311121, China
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13
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Sheng L, Li J, Rao S, Yang Z, Huang Y. Cyclin-Dependent Kinase 5 Regulatory Subunit Associated Protein 3: Potential Functions and Implications for Development and Disease. Front Oncol 2021; 11:760429. [PMID: 34722315 PMCID: PMC8551632 DOI: 10.3389/fonc.2021.760429] [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: 08/18/2021] [Accepted: 09/27/2021] [Indexed: 12/24/2022] Open
Abstract
Cyclin-dependent kinase 5 (CDK5) regulatory subunit associated protein 3 (CDK5RAP3, also named as C53 or LZAP) was initially identified as a binding protein of CDK5 activator p35. To date, CDK5RAP3 has been reported to interact with a range of proteins involved in cellular events ranging from cell cycle, apoptosis, and invasion to UFMylation modification and endoplasmic reticulum stress. Owing to its crucial roles in cellular processes, CDK5RAP3 is demonstrated to be not only an active participant in embryonic and mammalian tissue development, but also a key regulator in the onset and progress of human cancers such as head and neck squamous cell carcinoma, gastric cancer, hepatocellular cancer, lung cancer, kidney cancer and breast cancer. Notwithstanding, the detailed function of CDK5RAP3 and its mechanism remain poorly defined. Here, we briefly described a history of the discovery of CDK5RAP3, and systematically overviewed its gene structural and distribution features. We also focused on the known functions of this protein and its implications for embryogenesis and tissue development, as well as diseases especially carcinoma. This review may facilitate to understand the molecular and functional basis of CDK5RAP3 and its association with development and disease, and provide a reasonable idea for novel therapeutic opportunities targeting CDK5RAP3.
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Affiliation(s)
- Linna Sheng
- Department of Pathophysiology, Basic Medical College of Nanchang University, Nanchang, China.,Graduate College of Nanchang University, Nanchang, China
| | - Jiaxuan Li
- Nanchang Joint Program, Queen Mary School, Nanchang University, Nanchang, China
| | - Shengfang Rao
- Department of Nuclear Medicine, Nanchang University Hospital, Nanchang, China
| | - Zhijun Yang
- Department of Pathophysiology, Basic Medical College of Nanchang University, Nanchang, China
| | - Yonghong Huang
- Department of Pathophysiology, Basic Medical College of Nanchang University, Nanchang, China
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14
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Firmino JP, Vallejos-Vidal E, Balebona MC, Ramayo-Caldas Y, Cerezo IM, Salomón R, Tort L, Estevez A, Moriñigo MÁ, Reyes-López FE, Gisbert E. Diet, Immunity, and Microbiota Interactions: An Integrative Analysis of the Intestine Transcriptional Response and Microbiota Modulation in Gilthead Seabream ( Sparus aurata) Fed an Essential Oils-Based Functional Diet. Front Immunol 2021; 12:625297. [PMID: 33746962 PMCID: PMC7969985 DOI: 10.3389/fimmu.2021.625297] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/28/2021] [Indexed: 12/22/2022] Open
Abstract
Essential oils (EOs) are promising alternatives to chemotherapeutics in animal production due to their immunostimulant, antimicrobial, and antioxidant properties, without associated environmental or hazardous side effects. In the present study, the modulation of the transcriptional immune response (microarray analysis) and microbiota [16S Ribosomal RNA (rRNA) sequencing] in the intestine of the euryhaline fish gilthead seabream (Sparus aurata) fed a dietary supplementation of garlic, carvacrol, and thymol EOs was evaluated. The transcriptomic functional analysis showed the regulation of genes related to processes of proteolysis and inflammatory modulation, immunity, transport and secretion, response to cyclic compounds, symbiosis, and RNA metabolism in fish fed the EOs-supplemented diet. Particularly, the activation of leukocytes, such as acidophilic granulocytes, was suggested to be the primary actors of the innate immune response promoted by the tested functional feed additive in the gut. Fish growth performance and gut microbiota alpha diversity indices were not affected, while dietary EOs promoted alterations in bacterial abundances in terms of phylum, class, and genus. Subtle, but significant alterations in microbiota composition, such as the decrease in Bacteroidia and Clostridia classes, were suggested to participate in the modulation of the intestine transcriptional immune profile observed in fish fed the EOs diet. Moreover, regarding microbiota functionality, increased bacterial sequences associated with glutathione and lipid metabolisms, among others, detected in fish fed the EOs supported the metabolic alterations suggested to potentially affect the observed immune-related transcriptional response. The overall results indicated that the tested dietary EOs may promote intestinal local immunity through the impact of the EOs on the host-microbial co-metabolism and consequent regulation of significant biological processes, evidencing the crosstalk between gut and microbiota in the inflammatory regulation upon administration of immunostimulant feed additives.
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Affiliation(s)
- Joana P. Firmino
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
- TECNOVIT–FARMFAES, S.L. Alforja, Spain
- Ph.D. Program in Aquaculture, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eva Vallejos-Vidal
- Departamento de Biología, Facultad de Química y Biología, Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | - M. Carmen Balebona
- Department of Microbiology, Faculty of Science, University of Malaga, Málaga, Spain
| | - Yuliaxis Ramayo-Caldas
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology, Torre Marimon, Caldes de Montbui, Spain
| | - Isabel M. Cerezo
- Department of Microbiology, Faculty of Science, University of Malaga, Málaga, Spain
| | - Ricardo Salomón
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
- Ph.D. Program in Aquaculture, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lluis Tort
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Alicia Estevez
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
| | | | - Felipe E. Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
- Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Santiago, Chile
- Consorcio Tecnológico de Sanidad Acuícola, Ictio Biotechnologies S. A., Santiago, Chile
| | - Enric Gisbert
- IRTA, Centre de Sant Carles de la Ràpita (IRTA-SCR), Aquaculture Program, Sant Carles de la Ràpita, Spain
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15
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Quintero M, Liu S, Xia Y, Huang Y, Zou Y, Li G, Hu L, Singh N, Blumberg R, Cai Y, Xu H, Li H. Cdk5rap3 is essential for intestinal Paneth cell development and maintenance. Cell Death Dis 2021; 12:131. [PMID: 33504792 PMCID: PMC7841144 DOI: 10.1038/s41419-021-03401-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023]
Abstract
Intestinal Paneth cells are professional exocrine cells that play crucial roles in maintenance of homeostatic microbiome, modulation of mucosal immunity, and support for stem cell self-renewal. Dysfunction of these cells may lead to the pathogenesis of human diseases such as inflammatory bowel disease (IBD). Cdk5 activator binding protein Cdk5rap3 (also known as C53 and LZAP) was originally identified as a binding protein of Cdk5 activator p35. Although previous studies have indicated its involvement in a wide range of signaling pathways, the physiological function of Cdk5rap3 remains largely undefined. In this study, we found that Cdk5rap3 deficiency resulted in very early embryonic lethality, indicating its indispensable role in embryogenesis. To further investigate its function in the adult tissues and organs, we generated intestinal epithelial cell (IEC)-specific knockout mouse model to examine its role in intestinal development and tissue homeostasis. IEC-specific deletion of Cdk5rap3 led to nearly complete loss of Paneth cells and increased susceptibility to experimentally induced colitis. Interestingly, Cdk5rap3 deficiency resulted in downregulation of key transcription factors Gfi1 and Sox9, indicating its crucial role in Paneth cell fate specification. Furthermore, Cdk5rap3 is highly expressed in mature Paneth cells. Paneth cell-specific knockout of Cdk5rap3 caused partial loss of Paneth cells, while inducible acute deletion of Cdk5rap3 resulted in disassembly of the rough endoplasmic reticulum (RER) and abnormal zymogen granules in the mature Paneth cells, as well as loss of Paneth cells. Together, our results provide definitive evidence for the essential role of Cdk5rap3 in Paneth cell development and maintenance.
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Affiliation(s)
- Michaela Quintero
- Department of Biochemistry & Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Siyang Liu
- Department of Biochemistry & Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Yanhua Xia
- Faculty of Basic Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Yonghong Huang
- Faculty of Basic Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Yi Zou
- Department of Metabolic Endocrinology, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ge Li
- Department of Pathology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Ling Hu
- Department of Metabolic Endocrinology, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Nagendra Singh
- Department of Biochemistry & Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Richard Blumberg
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Hong Xu
- Faculty of Basic Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Honglin Li
- Department of Biochemistry & Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA.
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16
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Ubiquitin fold modifier 1 activates NF-κB pathway by down-regulating LZAP expression in the macrophage of diabetic mouse model. Biosci Rep 2020; 40:221481. [PMID: 31829413 PMCID: PMC6944655 DOI: 10.1042/bsr20191672] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/25/2019] [Accepted: 12/02/2019] [Indexed: 12/16/2022] Open
Abstract
Inflammatory response is closely related with the development of many serious health problems worldwide including diabetes mellitus (DM). Ubiquitin-fold modifer 1 (Ufm1) is a newly discovered ubiquitin-like protein, while its function remains poorly investigated, especially in inflammatory response and DM. In the present study, we analyzed the role of Ufm1 on inflammatory response in DM, and found that the proinflammatory cytokine levels (tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-1β) and Ufm1 expression were highly increased both in the peritoneal macrophages of db/db mice and Raw264.7 cells induced by lipopolysaccharide (LPS). Western blot and luciferase reporter assay showed that NF-κB pathway was obviously activated in macrophages and the expression of LZAP, an inhibitor of NF-κB pathway, was down-regulated. With the LZAP knockdown plasmid and activation plasmid, we demonstrated that NF-κB/p65 activation was inhibited by LZAP in macrophages. The interaction of Ufm1 and LZAP was further proved with co-immunoprecipitation assay in HEK293 and Raw264.7 cells. The LZAP expression was also related with the presence of Ufm1 demonstrated by Ufm1 knockdown plasmid and activation plasmid. Besides that, we finally proved that the expression and activation of Ufm1 induced by LPS were regulated by JNK/ATF2 and JNK/c-Jun pathway with the use of SP600125. In conclusion, the present study demonstrated that Ufm 1 could activate NF-κB pathway by down-regulating LZAP in macrophage of diabetes, and its expression and activation were regulated by JNK/ATF2 and c-Jun pathway.
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17
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Shen Y, Zou Y, Li J, Chen F, Li H, Cai Y. CDK5RAP3, a Novel Nucleoplasmic Shuttle, Deeply Regulates HSF1-Mediated Heat Stress Response and Protects Mammary Epithelial Cells from Heat Injury. Int J Mol Sci 2020; 21:E8400. [PMID: 33182370 PMCID: PMC7664939 DOI: 10.3390/ijms21218400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 12/21/2022] Open
Abstract
CDK5RAP3 was regarded as the most significant regulator of cellular responses against heat stress, which is associated with dysfunctions of the immune system and animal susceptibility to disease. Despite this, little known about how CDK5RAP3 regulates heat stress response. In this study, CDK5RAP3 conditional Knockout (CKO) mice, CDK5RAP3-/- mouse embryo fibroblasts (MEFs) and bovine mammary epithelial cells (BMECs) were used as an in vitro and in vivo model, respectively to reveal the role of CDK5RAP3 in regulating the heat stress response. The deletion of CDK5RAP3 unexpectedly caused animal lethality after 1.5-h heat stimulations. Furthermore, BMECs were re-cultured for eight hours after heat stress and was found that the expression of CDK5RAP3 and HSPs showed a similar fluctuating pattern of increase (0-2, 4-6 h) and decrease (2-4, 6-8 h). In addition to the remarkably enhanced expression of heat shock protein, apoptosis rate and endoplasmic reticulum stress, the deletion of CDK5RAP3 also affected nucleoplasmic translocation and trimer formation of heat shock factor 1 (HSF1). These programs were further confirmed in the mammary gland of CDK5RAP3 CKO mice and CDK5RAP3-/- MEFs as well. Interestingly, genetic silencing of HSF1 downregulated CDK5RAP3 expression in BMECs. Immunostaining and immunoprecipitation studies suggested a physical interaction between CDK5RAP3 and HSF1 being co-localized in the cytoplasm and nucleus. Besides, CDK5RAP3 also interacted with HSP90, suggesting an operative machinery at both transcriptional level and protein functionality of HSP90 per se. Together, our findings suggested that CDK5RAP3 works like a novel nucleoplasmic shuttle or molecular chaperone, deeply participating in HSF1-mediated heat stress response and protecting cells from heat injury.
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Affiliation(s)
- Yangyang Shen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (Y.Z.); (F.C.)
| | - Yan Zou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (Y.Z.); (F.C.)
| | - Jun Li
- College of Life Sciences, Anhui Normal University, Wuhu 241000, China;
| | - Fanghui Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (Y.Z.); (F.C.)
| | - Honglin Li
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA;
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (Y.Z.); (F.C.)
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18
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Yang S, Yang R, Wang H, Huang Y, Jia Y. CDK5RAP3 Deficiency Restrains Liver Regeneration after Partial Hepatectomy Triggering Endoplasmic Reticulum Stress. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:2403-2416. [PMID: 32926856 DOI: 10.1016/j.ajpath.2020.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 08/20/2020] [Accepted: 08/24/2020] [Indexed: 12/19/2022]
Abstract
CDK5 regulatory subunit-associated protein 3 (CDK5RAP3) plays a crucial role in mammalian liver development and hepatic function by controlling hepatocyte proliferation and differentiation, glucose and lipid metabolism, UFMylation, and endoplasmic reticulum homeostasis. However, the role of CDK5RAP3 in liver regeneration remains unknown. A liver-specific Cdk5rap3 knockout (CKO) mouse model was used to study the function of CDK5RAP3 during liver regeneration induced by standard two-thirds partial hepatectomy (PHx). Twenty-four hours after PHx, the liver-to-body weight ratio was markedly higher in CKO mice than in wild-type mice. However, this ratio did not increase significantly and gradually over time after PHx in CKO mice. Hepatocyte proliferation was significantly delayed in CKO mice compared with wild-type mice. Meanwhile, CDK5RAP3 deficiency increased lipid accumulation, impaired glycogen synthesis, and lowered blood glucose levels after PHx. Critically, the absence of CDK5RAP3 seemed to promote an inflammatory response and induce apoptosis at a late stage of liver regeneration. In addition, CDK5RAP3 deficiency disrupted UFMylation homeostasis and aggravated endoplasmic reticulum stress in hepatocytes after PHx. Taken together, these data suggest that CDK5RAP3 enhances liver regeneration, at least partially via controlling cell cycle and glucose and lipid metabolism.
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Affiliation(s)
- Shuchun Yang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rui Yang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huanmin Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue Huang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Yuyan Jia
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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19
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Lin JX, Yoon C, Li P, Ryeom SW, Cho SJ, Zheng CH, Xie JW, Wang JB, Lu J, Chen QY, Yoon SS, Huang CM. CDK5RAP3 as tumour suppressor negatively regulates self-renewal and invasion and is regulated by ERK1/2 signalling in human gastric cancer. Br J Cancer 2020; 123:1131-1144. [PMID: 32606358 PMCID: PMC7525566 DOI: 10.1038/s41416-020-0963-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/18/2020] [Accepted: 06/11/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Toward identifying new strategies to target gastric cancer stem-like cells (CSCs), we evaluated the function of the tumour suppressor CDK5 regulatory subunit-associated protein 3 (CDK5RAP3) in gastric CSC maintenance. METHODS We examined the expression of CDK5RAP3 and CD44 in gastric cancer patients. The function and mechanisms of CDK5RAP3 were checked in human and mouse gastric cancer cell lines and in mouse xenograft. RESULTS We show that CDK5RAP3 is weakly expressed in gastric CSCs and is negatively correlated with the gastric CSC marker CD44. CDK5RAP3 overexpression decreased expression of CSC markers, spheroid formation, invasion and migration, and reversed chemoresistance in gastric CSCs in vitro and vivo. CDK5RAP3 expression was found to be regulated by extracellular-related kinase (ERK) signalling. ERK inhibitors decreased spheroid formation, migration and invasion, and the expression of epithelial-to-mesenchymal transition (EMT)-related proteins in both GA cells and organoids derived from a genetically engineered mouse model of GA. Finally, CDK5RAP3 expression was associated with reduced lymph-node metastasis and better prognosis, even in the presence of high expression of the EMT transcription factor Snail, among patients with CD44-positive GA. CONCLUSIONS Our results demonstrate that CDK5RAP3 is suppressed by ERK signalling and negatively regulates the self-renewal and EMT of gastric CSCs.
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Affiliation(s)
- Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Changhwan Yoon
- Gastric and Mixed Tumor Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Sandra W Ryeom
- Department of Cancer Biology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Soo-Jeong Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Jian-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Gastric and Mixed Tumor Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Sam S Yoon
- Gastric and Mixed Tumor Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China.
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20
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Dai YF, Lin N, He DQ, Xu M, Zhong LY, He SQ, Guo DH, Li Y, Huang HL, Zheng XQ, Xu LP. LZAP promotes the proliferation and invasiveness of cervical carcinoma cells by targeting AKT and EMT. J Cancer 2020; 11:1625-1633. [PMID: 32047568 PMCID: PMC6995386 DOI: 10.7150/jca.39359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 12/01/2019] [Indexed: 11/25/2022] Open
Abstract
Objective: To explore the relationship and mechanism of LZAP in the occurrence and development of cervical cancer and to provide a new target and intervention method for the treatment of cervical cancer. Methods: Data mining and analysis of LZAP expression levels were performed using several online databases, including The Cancer Genome Atlas (TCGA). A cervical cancer cell line that stably overexpresses LZAP was established, and the effect of LZAP overexpression on cell proliferation, invasion, migration and tumor formation in vivo as well as its mechanism were explored. Results: Our study shows that the expression of LZAP is upregulated in cervical cancer. The overexpression of LZAP can significantly promote the proliferation, colony formation, and invasion and migration abilities of cervical cancer cells. The tumorigenesis test in nude mice showed that overexpression of LZAP could promote the tumorigenicity of cervical cancer cells in vivo. LZAP could also promote the phosphorylation of AKT at position 473 and the epithelial-mesenchymal transition (EMT). Conclusion: The expression of LAZP is increased in cervical cancer, which can enhance the invasion, metastasis, and EMT in cervical cancer cells by promoting AKT phosphorylation.
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Affiliation(s)
- Yi-Fang Dai
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - Na Lin
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - De-Qin He
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - Mu Xu
- Department of Gynecology, Fujian Provincial Maternity and Children's Hospital, Fuzhou 350001, China
| | - Li-Ying Zhong
- Department of Gynecology, Fujian Provincial Maternity and Children's Hospital, Fuzhou 350001, China
| | - Shu-Qiong He
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - Dan-Hua Guo
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - Ying Li
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - Hai-Long Huang
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
| | - Xiang-Qing Zheng
- Department of Gynecology, Fujian Provincial Maternity and Children's Hospital, Fuzhou 350001, China
| | - Liang-Pu Xu
- Center of Prenatal Diagnosis, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China.,Fujian Provincial Key Laboratory for Prenatal diagnosis and Birth Defect, Fuzhou 350001, China
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21
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Gerakis Y, Quintero M, Li H, Hetz C. The UFMylation System in Proteostasis and Beyond. Trends Cell Biol 2019; 29:974-986. [PMID: 31703843 PMCID: PMC6917045 DOI: 10.1016/j.tcb.2019.09.005] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 09/24/2019] [Accepted: 09/25/2019] [Indexed: 12/16/2022]
Abstract
Post-translational modifications are at the apex of cellular communication and eventually regulate every aspect of life. The identification of new post-translational modifiers is opening alternative avenues in understanding fundamental cell biology processes and may ultimately provide novel therapeutic opportunities. The ubiquitin-fold modifier 1 (UFM1) is a post-translational modifier discovered a decade ago but its biological significance has remained mostly unknown. The field has recently witnessed an explosion of research uncovering the implications of the pathway to cellular homeostasis in living organisms. We overview recent advances in the function and regulation of the UFM1 pathway, and its implications for cell physiology and disease.
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Affiliation(s)
- Yannis Gerakis
- Biomedical Neuroscience Institute (BNI), Faculty of Medicine, University of Chile, Santiago, Chile; FONDAP (Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias) Center for Geroscience (GERO), Brain Health and Metabolism, Santiago, Chile; Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Michaela Quintero
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Honglin Li
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA.
| | - Claudio Hetz
- Biomedical Neuroscience Institute (BNI), Faculty of Medicine, University of Chile, Santiago, Chile; FONDAP (Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias) Center for Geroscience (GERO), Brain Health and Metabolism, Santiago, Chile; Buck Institute for Research on Aging, Novato, CA 94945, USA; Cellular and Molecular Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.
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22
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Lin JX, Weng XF, Xie XS, Lian NZ, Qiu SL, Wang JB, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Yang YH, Liu SJ, Hu M, Lin YK, Huang CM, Zheng CH, Li P, Xie JW. CDK5RAP3 inhibits angiogenesis in gastric neuroendocrine carcinoma by modulating AKT/HIF-1α/VEGFA signaling. Cancer Cell Int 2019; 19:282. [PMID: 31728130 PMCID: PMC6839262 DOI: 10.1186/s12935-019-0997-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/23/2019] [Indexed: 12/15/2022] Open
Abstract
Background Angiogenesis plays critical roles in the progression and metastasis of malignant tumors. Gastric neuroendocrine carcinoma is an uncommon stomach cancer that is rich in blood vessels and exhibits highly malignant biological behavior with a poor prognosis. The role of CDK5RAP3 in GNEC has not been reported to date. Methods Immunohistochemistry was used to assess the expression of CDK5RAP3 in GNEC tissues and adjacent non-tumor tissues. Cell lines with stable overexpression or knockdown of CDK5RAP3 were constructed using lentiviral transfection. Wound-healing assays, invasion and metastasis assays, tube formation assays, and tumor xenograft transplantation assays were performed to evaluate the effect of CDK5RAP3 on GNEC angiogenesis in vitro and in vivo. Real-time PCR, ELISA, western blot analysis, and confocal-immunofluorescence staining were used to explore the molecular mechanism of CDK5RAP3′s effect on angiogenesis. Results Compared with their respective adjacent non-tumor tissues, protein levels of CDK5RAP3 were significantly decreased in GNEC tissues. Furthermore, low expression of CDK5RAP3 was correlated with more advanced TNM stage, increased tumor microvessel density, and poor prognosis. Functionally, we found that GNEC cells with CDK5RAP3 knockdown promoted human umbilical vein endothelial cells migration and tube formation via activation of AKT/HIF-1α/VEGFA signaling, resulting in increased levels of VEGFA in GNEC cell supernatant. In addition, CDK5RAP3 overexpression in GNEC cells caused the opposing effect. Consistent with these results, nude mouse tumorigenicity assays showed that CDK5RAP3 expression downregulated angiogenesis in vivo. Lastly, patients with low CDK5RAP3 expression and high VEGFA expression exhibited the worst prognosis. Conclusions This study demonstrated that CDK5RAP3 inhibits angiogenesis by downregulating AKT/HIF-1α/VEGFA signaling in GNEC and improves patient prognosis, suggesting that CDK5RAP3 could be a potential therapeutic target for GNEC.
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Affiliation(s)
- Jian-Xian Lin
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Xiong-Feng Weng
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Xin-Sheng Xie
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Ning-Zi Lian
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Sheng-Liang Qiu
- 4Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian China
| | - Jia-Bin Wang
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Jun Lu
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Qi-Yue Chen
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Long-Long Cao
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Mi Lin
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Ru-Hong Tu
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Ying-Hong Yang
- 4Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian China
| | - Si-Jia Liu
- 2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Min Hu
- 2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Yi-Ke Lin
- 2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Chang-Ming Huang
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Chao-Hui Zheng
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Ping Li
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
| | - Jian-Wei Xie
- 1Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001 Fujian China.,2Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian China.,3Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian China
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23
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Li J, Yue G, Ma W, Zhang A, Zou J, Cai Y, Tang X, Wang J, Liu J, Li H, Su H. Ufm1-Specific Ligase Ufl1 Regulates Endoplasmic Reticulum Homeostasis and Protects Against Heart Failure. Circ Heart Fail 2019; 11:e004917. [PMID: 30354401 DOI: 10.1161/circheartfailure.118.004917] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Defects in protein homeostasis are sufficient to provoke cardiac remodeling and dysfunction. Although posttranslational modifications by ubiquitin and ubiquitin-like proteins are emerging as an important regulatory mechanism of protein function, the role of Ufm1 (ubiquitin-fold modifier 1)-a novel ubiquitin-like protein-has not been explored in either the normal or stressed heart. METHODS AND RESULTS Western blotting revealed that Ufl1 (Ufm1-specific E3 ligase 1)-an enzyme essential for Ufm1 modification-was increased in hypertrophic mouse hearts but reduced in the failing hearts of patients with dilated cardiomyopathy. To determine the functional role of Ufl1 in the heart, we generated a cardiac-specific knockout mouse and showed that Ufl1-deficient mice developed age-dependent cardiomyopathy and heart failure, as indicated by elevated cardiac fetal gene expression, increased fibrosis, and impaired cardiac contractility. When challenged with pressure overload, Ufl1-deficient hearts exhibited remarkably greater hypertrophy, exacerbated fibrosis, and worsened cardiac contractility compared with control counterparts. Transcriptome analysis identified that genes associated with the endoplasmic reticulum (ER) function were dysregulated in Ufl1-deficient hearts. Biochemical analysis revealed that excessive ER stress preceded and deteriorated along with the development of cardiomyopathy in Ufl1-deficient hearts. Mechanistically, Ufl1 depletion impaired (PKR-like ER-resident kinase) signaling and aggravated cardiomyocyte cell death after ER stress. Administration of the chemical ER chaperone tauroursodeoxycholic acid to Ufl1-deficient mice alleviated ER stress and attenuated pressure overload-induced cardiac dysfunction. CONCLUSIONS Our results advance a novel concept that the Ufm1 system is essential for cardiac homeostasis through regulation of ER function and that upregulation of myocardial Ufl1 could be protective against heart failure.
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Affiliation(s)
- Jie Li
- Vascular Biology Center (J.L., G.Y., W.M., A.Z., J.Z., H.S.), Medical College of Georgia, Augusta University
| | - Guihua Yue
- Vascular Biology Center (J.L., G.Y., W.M., A.Z., J.Z., H.S.), Medical College of Georgia, Augusta University.,Guangxi Medical College, Nanning, China (G.Y.)
| | - Wenxia Ma
- Vascular Biology Center (J.L., G.Y., W.M., A.Z., J.Z., H.S.), Medical College of Georgia, Augusta University
| | - Aizhen Zhang
- Vascular Biology Center (J.L., G.Y., W.M., A.Z., J.Z., H.S.), Medical College of Georgia, Augusta University.,Affiliated Ruikang Hospital, Guangxi University of Chinese Medicine, Nanning (A.Z.)
| | - Jianqiu Zou
- Vascular Biology Center (J.L., G.Y., W.M., A.Z., J.Z., H.S.), Medical College of Georgia, Augusta University
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, China (Y.C.)
| | - Xiaoli Tang
- Department of Biochemistry, School of Medicine, Nanchang University, Jiangxi, China (X.T.)
| | - Jun Wang
- Department of Basic Research Laboratories, Center for Stem Cell Engineering, Texas Heart Institute, Houston (J.W.)
| | - Jinbao Liu
- Protein Modification and Degradation Lab, School of Basic Medical Sciences, Guangzhou Medical University, China (J.L., H.S.)
| | - Honglin Li
- Department of Biochemistry and Molecular Biology (H.L.), Medical College of Georgia, Augusta University
| | - Huabo Su
- Vascular Biology Center (J.L., G.Y., W.M., A.Z., J.Z., H.S.), Medical College of Georgia, Augusta University.,Department of Pharmacology and Toxicology (H.S.), Medical College of Georgia, Augusta University.,Protein Modification and Degradation Lab, School of Basic Medical Sciences, Guangzhou Medical University, China (J.L., H.S.)
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24
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Fang Z, Pan Z. Essential Role of Ubiquitin-Fold Modifier 1 Conjugation in DNA Damage Response. DNA Cell Biol 2019; 38:1030-1039. [PMID: 31368785 DOI: 10.1089/dna.2019.4861] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Both endogenous and exogenous factors can cause DNA damage that compromises genomic integrity and cell viability. A proper DNA damage response (DDR) plays a role in maintaining genome stability and preventing tumorigenesis. DNA double-strand breaks (DSBs) are the most toxic DNA lesion, whose response is dominated by the ataxia-telangiectasia mutated (ATM) protein kinase. After being activated by the sensor Mre11-Rad50-Nbs1 (MRN) complex or acetyltransferase Tip60, ATM rapidly phosphorylates downstream targets to launch DDR signaling when DNA is damaged. However, the exact mechanism of DDR is complex and ambiguous. Ufmylation, one type of ubiquitin-like modification, proceeds mainly through a three-step enzymatic reaction to help ubiquitin-fold modifier 1 (Ufm1), attach to substrates with ubiquitin-like modifier-activating enzyme 5 (Uba5), Ufm1-conjugating enzyme 1 (Ufc1) and Ufm1-specific ligase 1 (Ufl1). Although ubiquitination is essential to the DSBs response, the potential function of ufmylation in DDR is largely unknown. Herein, we review the relationship between ufmylation and DDR to elucidate the function and mechanism of ufmylation in DDR, which would reveal the pathogenesis of some diseases and provide new guidance to create a therapeutic method.
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Affiliation(s)
- Zhi Fang
- Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zezheng Pan
- Faculty of Basic Medical Science, Jiangxi Medical College, Nanchang University, Nanchang, China
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25
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Chen QY, Liu LC, Wang JB, Xie JW, Lin JX, Lu J, Cao LL, Lin M, Tu RH, Huang CM, Li P, Zheng CH. CDK5RAP3 Inhibits the Translocation of MCM6 to Influence the Prognosis in Gastric Cancer. J Cancer 2019; 10:4488-4498. [PMID: 31528213 PMCID: PMC6746120 DOI: 10.7150/jca.32208] [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: 12/12/2018] [Accepted: 04/29/2019] [Indexed: 01/12/2023] Open
Abstract
Cyclin-dependent kinase 5 regulatory subunit-associated protein 3 (CDK5RAP3) was identified as a tumor suppressor in gastric cancer, while, minichromosome maintenance complex component 6 (MCM6), which is closely related to the initiation of DNA replication, was reported to be upregulated in multiple malignancies. However, the interaction between these two proteins has not been investigated in gastric cancer. Here, we evaluate the connection between CDK5RAP3 and MCM6 using mass spectrometry and immunoprecipitation. In cells, cell growth and invasiveness indicate that CDK5RAP3 acts as a tumor suppressor by preventing the effects of MCM6. The potential mechanism was revealed using immunofluorescence and nuclear protein extraction. In patients, immunohistochemistry and immunofluorescence show that the protein levels of CDK5RAP3 were markedly decreased in most gastric tumor tissues compared with adjacent nontumor tissues, and the expression levels of MCM6 in the nucleus showed the opposite trend. Prognostic analysis showed that the combined expression of CDK5RAP3 and MCM6 was an independent prognostic factor correlating with the overall survival of gastric cancer patients. Cox regression analysis indicated that the expression of CDK5RAP3 and MCM6 corresponded to T, N, and M stages. Our results demonstrate that CDK5RAP3 can interact with MCM6 and prevent MCM6 from translocating into the nucleus, which may be a potential mechanism through which CDK5RAP3 negatively regulates the proliferation of gastric cancer.
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Affiliation(s)
- Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Li-Chao Liu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
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Xie Z, Fang Z, Pan Z. Ufl1/RCAD, a Ufm1 E3 ligase, has an intricate connection with ER stress. Int J Biol Macromol 2019; 135:760-767. [PMID: 31129212 DOI: 10.1016/j.ijbiomac.2019.05.170] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 12/11/2022]
Abstract
Ufmylation is a type of post-translational modification that deals with complex and fine-tuned cellular activities. This modification proceeds mainly through a three-step enzymatic reaction with ubiquitin-fold modifier 1 (Ufm1), ubiquitin-like modifier-activating enzyme 5 (Uba5), Ufm1-conjugating enzyme 1 (Ufc1) and Ufm1-specific ligase 1 (Ufl1). Ufl1 has previously been reported to function as a Ufm1 E3 ligase in the ufmylation system, but knowledge of its physiological functions remains poor. At the subcellular level, Ufl1 is enriched in the endoplasmic reticulum (ER), implying that it may regulate events closely associated with the ER and ER functions, such as protein synthesis, folding, and secretion, compounding lipids or sterols, and maintaining calcium homeostasis. Different physiological or pathological stress circumstances can, however, disrupt ER homeostasis, giving rise to an incongruous condition that is harmful to cellular activity and ultimately causes ER stress. Understanding the relationship between Ufl1 and ER stress in physiology and pathology may reveal the pathogenesis of some diseases and provide new guidance to create a therapeutic method. Herein, we review the current literature and discuss the relationship between Ufl1 and ER stress (in hematopoietic disease, heart disease, etc.), thus providing insight into additional diseases.
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Affiliation(s)
- Zheng Xie
- Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Zhi Fang
- Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Zezheng Pan
- Faculty of Basic Medical Science, Jiangxi Medical College, Nanchang University, Nanchang 330006, China.
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27
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CDK5RAP3 Participates in Autophagy Regulation and Is Downregulated in Renal Cancer. DISEASE MARKERS 2019; 2019:6171782. [PMID: 31061682 PMCID: PMC6466961 DOI: 10.1155/2019/6171782] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/05/2019] [Accepted: 02/05/2019] [Indexed: 12/17/2022]
Abstract
Renal cancer is one of the most common malignant urological tumors; however, its diagnosis and treatment are not well established. In the present study, we identified that CDK5 regulatory subunit-associated protein 3 (CDK5RAP3), a putative tumor suppressor in many cancers, was downregulated in renal cancer tissues. Through loss- and gain-of-function experiments, we observed that the action of CDK5RAP3 in renal cancer cells was different in Caki-1 and 769-P cell lines. Knockdown of endogenous CDK5RAP3 in Caki-1 slightly increased cell viability, whereas overexpression of CDK5RAP3 in 769-P cells inhibited cell viability. In addition, we observed that CDK5RAP3 participated in the regulation of autophagy in renal cancer. Knockdown of CDK5RAP3 induced significant inhibition of autophagy in Caki-1 cells but not in 769-P cells. In contrast, overexpression of CDK5RAP3 significantly activated autophagy in 769-P cells, as evidenced by increased LC3-II levels. However, the LC3-II could not be altered by CDK5RAP3 overexpression in Caki-1 cells. These findings demonstrated that CDK5RAP3 is downregulated in renal cancer and may be associated with autophagy.
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28
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Lin JX, Xie XS, Weng XF, Qiu SL, Xie JW, Wang JB, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Li P, Huang CM, Zheng CH. Overexpression of IC53d promotes the proliferation of gastric cancer cells by activating the AKT/GSK3β/cyclin D1 signaling pathway. Oncol Rep 2019; 41:2739-2752. [PMID: 30864700 PMCID: PMC6448126 DOI: 10.3892/or.2019.7042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 02/04/2019] [Indexed: 01/09/2023] Open
Abstract
Cyclin‑dependent kinase 5 regulatory subunit‑associated protein 3 (CDK5RAP3 or C53) is involved in the development of various types of tumor, and alternative splicing of C53 results in numerous transcription variants that encode different isoforms. The present study aimed to clone human C53 isoform d (IC53d) and explore its role in the proliferation of gastric cancer cells. Reverse transcription‑quantitative polymerase chain reaction was used to detect the expression levels of IC53d in 80 primary gastric adenocarcinoma tissues and adjacent normal tissues. In addition, the association between IC53d and clinicopathological parameters was determined. Gastric cancer cell lines stably overexpressing IC53d were established to observe its effects on cell proliferation, invasion and migration, and on in vivo tumorigenicity, and the mechanism of action was explored. The results of the presen study demonstrated that IC53d was upregulated in gastric cancer tissues and was associated with tumor T‑stage. Furthermore, overexpression of IC53d promoted the proliferation, colony formation and G1/S phase transition of gastric cancer cells, leading to enhancement of tumorigenesis in vitro and in vivo. Overexpression of IC53d also promoted phosphorylation of protein kinase B (AKT) and glycogen synthase kinase 3β (GSK3β), which increased the expression of cyclin D1. In addition, high cyclin D1 expression was associated with a significantly worse prognosis for patients compared with in patients with low cyclin D1 expression. These results indicated that IC53d may promote the phosphorylation of AKT and GSK3β, which in turn may increase cyclin D1 expression, enhancing G1/S phase transition, accelerating cell cycle progression, promoting the proliferation of gastric cancer cells, and inducing a poor prognosis in patients with gastric cancer.
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Affiliation(s)
- Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Xin-Sheng Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Xiong-Feng Weng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Sheng-Liang Qiu
- Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
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29
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Yang R, Wang H, Kang B, Chen B, Shi Y, Yang S, Sun L, Liu Y, Xiao W, Zhang T, Yang J, Zhang Y, Zhu M, Xu P, Chang Y, Jia Y, Huang Y. CDK5RAP3, a UFL1 substrate adaptor, is crucial for liver development. Development 2019; 146:dev.169235. [PMID: 30635284 DOI: 10.1242/dev.169235] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 01/04/2019] [Indexed: 12/21/2022]
Abstract
Protein modification by ubiquitin and ubiquitin-like proteins (UBLs) regulates numerous biological functions. The UFM1 system, a novel UBL conjugation system, is implicated in mouse development and hematopoiesis. However, its broad biological functions and working mechanisms remain largely elusive. CDK5RAP3, a possible ufmylation substrate, is essential for epiboly and gastrulation in zebrafish. Herein, we report a crucial role of CDK5RAP3 in liver development and hepatic functions. Cdk5rap3 knockout mice displayed prenatal lethality with severe liver hypoplasia, as characterized by delayed proliferation and compromised differentiation. Hepatocyte-specific Cdk5rap3 knockout mice suffered post-weaning lethality, owing to serious hypoglycemia and impaired lipid metabolism. Depletion of CDK5RAP3 triggered endoplasmic reticulum stress and activated unfolded protein responses in hepatocytes. We detected the in vivo interaction of CDK5RAP3 with UFL1, the defined E3 ligase in ufmylation. Notably, loss of CDK5RAP3 altered the ufmylation profile in liver cells, suggesting that CDK5RAP3 serves as a novel substrate adaptor for this UBL modification. Collectively, our study identifies CDK5RAP3 as an important regulator of ufmylation and suggests the involvement of ufmylation in mammalian development.
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Affiliation(s)
- Rui Yang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Huanmin Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Boxi Kang
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Bin Chen
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yaoyao Shi
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100005, China
| | - Shuchun Yang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Lihong Sun
- Center for Experimental Animal Research, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yufang Liu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Weidi Xiao
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Tao Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Juntao Yang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Ye Zhang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Biochemistry & Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Mingzhao Zhu
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100005, China
| | - Ping Xu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences Beijing, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Yongsheng Chang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.,Department of Biochemistry & Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yuyan Jia
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China .,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yue Huang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China .,Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
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30
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Suppression of the SAP18/HDAC1 complex by targeting TRIM56 and Nanog is essential for oncogenic viral FLICE-inhibitory protein-induced acetylation of p65/RelA, NF-κB activation, and promotion of cell invasion and angiogenesis. Cell Death Differ 2019; 26:1970-1986. [PMID: 30670829 DOI: 10.1038/s41418-018-0268-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 12/26/2022] Open
Abstract
Kaposi's sarcoma (KS), a highly invasive and angiogenic tumor of endothelial spindle-shaped cells, is the most common AIDS-associated cancer caused by KS-associated herpesvirus (KSHV) infection. KSHV-encoded viral FLICE-inhibitory protein (vFLIP) is a viral oncogenic protein, but its role in the dissemination and angiogenesis of KSHV-induced cancers remains unknown. Here, we report that vFLIP facilitates cell migration, invasion, and angiogenesis by downregulating the SAP18-HDAC1 complex. vFLIP degrades SAP18 through a ubiquitin-proteasome pathway by recruiting E3 ubiquitin ligase TRIM56. Further, vFLIP represses HDAC1, a protein partner of SAP18, by inhibiting Nanog occupancy on the HDAC1 promoter. Notably, vFLIP impairs the interaction between the SAP18/HDAC1 complex and p65 subunit, leading to enhancement of p65 acetylation and NF-κB activation. Our data suggest a novel mechanism of vFLIP activation of the NF-κB by decreasing the SAP18/HDAC1 complex to promote the acetylation of p65 subunit, which contributes to vFLIP-induced activation of the NF-κB pathway, cell invasion, and angiogenesis. These findings advance our understanding of the mechanism of KSHV-induced pathogenesis, and providing a rationale for therapeutic targeting of the vFLIP/SAP18/HDAC1 complex as a novel strategy of AIDS-KS.
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31
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Lin JX, Xie XS, Weng XF, Zheng CH, Xie JW, Wang JB, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Li P, Huang CM. Low expression of CDK5RAP3 and DDRGK1 indicates a poor prognosis in patients with gastric cancer. World J Gastroenterol 2018; 24:3898-3907. [PMID: 30228783 PMCID: PMC6141336 DOI: 10.3748/wjg.v24.i34.3898] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/11/2018] [Accepted: 06/25/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the effects of different levels of expression of CDK5RAP3 and DDRGK1 on long-term survival of patients undergoing radical gastrectomy.
METHODS The expression of CDK5RAP3 and DDRGK1 was detected by immunohistochemistry in 135 patients who received standard gastrectomy were enrolled in the study. Western Blot was used to detect the expression of CDK5RAP3 and DDRGK1 in gastric cancer and its adjacent tissues and cell lines. The correlations between the expression of CDK5RAP3 and DDRGK1 and clinicopathological factors were analyzed, and the value of each parameter to the prognosis of the patients was compared. Receiver operating characteristic analysis was used to compare the accuracy of the prediction of clinical outcome by the parameters.
RESULTS CDK5RAP3 and DDRGK1 expression was down-regulated in the gastric cancer compared to its respective adjacent non-tumor tissues. The expression of CDK5RAP3 was closely related to the age of the patients (P = 0.035) and the T stage of the tumor (P = 0.017). The expression of DDRGK1 was correlated with the sex of the patients (P = 0.080), the degree of tumor differentiation (P = 0.036), the histological type (P = 0.036) and the N stage of the tumor (P = 0.014). Low expression CDK5RAP3 or DDRGK1 is a poor prognostic factor for gastric cancer patients. Prognostic analysis showed that the co-expression of CDK5RAP3 and DDRGK1 was an independent prognostic factor correlating with the overall survival of gastric cancer patients. Combined expression analysis of CDK5RAP3 and DDRGK1 may provide a more accurate prognostic value for overall survival.
CONCLUSION The co-expression of CDK5RAP3 and DDRGK1 is an independent prognostic factor for gastric cancer, which can provide a more accurate model for the long-term prognosis.
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Affiliation(s)
- Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Xin-Sheng Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Xiong-Feng Weng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian Province, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350108, Fujian Province, China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou 350108, Fujian Province, China
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Zheng CH, Wang JB, Lin MQ, Zhang PY, Liu LC, Lin JX, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Xie JW, Li P, Huang CM. CDK5RAP3 suppresses Wnt/β-catenin signaling by inhibiting AKT phosphorylation in gastric cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018. [PMID: 29540196 PMCID: PMC5852959 DOI: 10.1186/s13046-018-0716-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND CDK5RAP3 was initially isolated as a binding protein of the CDK5 activator p35. Although CDK5RAP3 has been shown to negatively regulate the Wnt/β-catenin signaling pathway in gastric cancer by repressing GSK-3β phosphorylation, its in-depth mechanism has not been determined. METHODS Following CDK5RAP3 overexpression or knock down, CDK5RAP3 signaling pathways were investigated in gastric cancer cells by Western Blotting. Cell growth, invasion and migration were also evaluated in gastric cancer cell lines. We analyzed CDK5RAP3, AKT, p-AKT (Ser473), GSK-3β and p-GSK-3β (Ser9) expression in gastric tumor samples and adjacent non-tumor tissues from 295 patients using immunohistochemistry and Western Blotting. The prognostic significance of CDK5RAP3 and p-AKT (Ser473) was confirmed by a Log-rank test. RESULTS Our study demonstrated that the expression of p-AKT (Ser473) and p-GSK-3β (Ser9) was negatively correlated with CDK5RAP3 in stable gastric cancer cell lines. CDK5RAP3 repressed AKT phosphorylation, which promoted GSK-3β phosphorylation, thereby suppressing β-catenin protein expression and, consequently, gastric cancer. The protein level of CDK5RAP3 was markedly decreased in most gastric tumor tissues compared with adjacent non-tumor tissues, and the levels of p-AKT (Ser473) and p-GSK-3β (Ser9) were also negatively correlated with those of CDK5RAP3. The prognostic value of CDK5RAP3 for overall survival was found to be dependent on AKT phosphorylation. CONCLUSION Our results demonstrated that CDK5RAP3 negatively regulates the Wnt/β-catenin signaling pathway by repressing AKT phosphorylation, which leads to better survival of patients with gastric cancer.
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Affiliation(s)
- Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Man-Qiang Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Peng-Yang Zhang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Li-Chao Liu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China.,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. .,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. .,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. .,Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. .,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.
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33
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Affiliation(s)
- Jialiang Wang
- a Department of Neurological Surgery, Cancer Biology and Pharmacology , Vanderbilt University Medical Center , Nashville , TN, USA
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34
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Current status and perspectives of patient-derived xenograft models in cancer research. J Hematol Oncol 2017; 10:106. [PMID: 28499452 PMCID: PMC5427553 DOI: 10.1186/s13045-017-0470-7] [Citation(s) in RCA: 191] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/22/2017] [Indexed: 12/15/2022] Open
Abstract
Cancers remain a major public health problem worldwide, which still require profound research in both the basic and preclinical fields. Patient-derived xenograft (PDX) models are created when cancerous cells or tissues from patients' primary tumors are implanted into immunodeficient mice to simulate human tumor biology in vivo, which have been extensively used in cancer research. The routes of implantation appeared to affect the outcome of PDX research, and there has been increasing applications of patient-derived orthotopic xenograft (PDOX) models. In this review, we firstly summarize the methodology to establish PDX models and then go over recent application and function of PDX models in basic cancer research on the areas of cancer characterization, initiation, proliferation, metastasis, and tumor microenvironment and in preclinical explorations of anti-cancer targets, drugs, and therapeutic strategies and finally give our perspectives on the future prospects of PDX models.
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Wamsley JJ, Gary C, Biktasova A, Hajek M, Bellinger G, Virk R, Issaeva N, Yarbrough WG. Loss of LZAP inactivates p53 and regulates sensitivity of cells to DNA damage in a p53-dependent manner. Oncogenesis 2017; 6:e314. [PMID: 28394357 PMCID: PMC5520489 DOI: 10.1038/oncsis.2017.12] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 12/22/2016] [Accepted: 02/10/2017] [Indexed: 02/07/2023] Open
Abstract
Chemotherapy and radiation, the two most common cancer therapies, exert their anticancer effects by causing damage to cellular DNA. However, systemic treatment damages DNA not only in cancer, but also in healthy cells, resulting in the progression of serious side effects and limiting efficacy of the treatment. Interestingly, in response to DNA damage, p53 seems to play an opposite role in normal and in the majority of cancer cells-wild-type p53 mediates apoptosis in healthy tissues, attributing to the side effects, whereas mutant p53 often is responsible for acquired cancer resistance to the treatment. Here, we show that leucine zipper-containing ARF-binding protein (LZAP) binds and stabilizes p53. LZAP depletion eliminates p53 protein independently of its mutation status, subsequently protecting wild-type p53 cells from DNA damage-induced cell death, while rendering cells expressing mutant p53 more sensitive to the treatment. In human non-small-cell lung cancer, LZAP levels correlated with p53 levels, suggesting that loss of LZAP may represent a novel mechanism of p53 inactivation in human cancer. Our studies establish LZAP as a p53 regulator and p53-dependent determinative of cell fate in response to DNA damaging treatment.
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Affiliation(s)
- J J Wamsley
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - C Gary
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - A Biktasova
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - M Hajek
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - G Bellinger
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - R Virk
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - N Issaeva
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - W G Yarbrough
- Division of Otolaryngology, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
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Wamsley JJ, Issaeva N, An H, Lu X, Donehower LA, Yarbrough WG. LZAP is a novel Wip1 binding partner and positive regulator of its phosphatase activity in vitro. Cell Cycle 2016; 16:213-223. [PMID: 28027003 DOI: 10.1080/15384101.2016.1261767] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The phosphatase Wip1 attenuates the DNA damage response (DDR) by removing phosphorylation marks from a number of DDR proteins (p53, MDM2, Chk1/2, p38). Wip1 also dephosphorylates and inactivates RelA. Notably, LZAP, a putative tumor suppressor, has been linked to dephosphorylation of several of these substrates, including RelA, p38, Chk1, and Chk2. LZAP has no known catalytic activity or functional motifs, suggesting that it exerts its effects through interaction with other proteins. Here we show that LZAP binds Wip1 and stimulates its phosphatase activity. LZAP had been previously shown to bind many Wip1 substrates (RelA, p38, Chk1/2), and our results show that LZAP also binds the previously identified Wip1 substrate, MDM2. This work identifies 2 novel Wip1 substrates, ERK1 and HuR, and demonstrates that HuR is a binding partner of LZAP. Pleasingly, LZAP potentiated Wip1 catalytic activity toward each substrate tested, regardless of whether full-length substrates or phosphopeptides were utilized. Since this effect was observed on ERK1, which does not bind LZAP, as well as for each of 7 peptides tested, we hypothesize that LZAP binding to the substrate is not required for this effect and that LZAP directly binds Wip1 to augment its phosphatase activity.
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Affiliation(s)
- J Jacob Wamsley
- a Department of Surgery, Division of Otolaryngology , Yale University , New Haven , CT , USA
| | - Natalia Issaeva
- a Department of Surgery, Division of Otolaryngology , Yale University , New Haven , CT , USA.,b Yale Cancer Center, Yale University , New Haven , CT , USA
| | - Hanbing An
- c Department of Surgery , Vanderbilt University , Nashville , TN , USA
| | - Xinyuan Lu
- d Department of Medicine , University of California San Francisco , San Francisco , CA , USA
| | - Lawrence A Donehower
- e Department of Molecular Virology and Microbiology , Baylor College of Medicine , Houston , TX , USA
| | - Wendell G Yarbrough
- a Department of Surgery, Division of Otolaryngology , Yale University , New Haven , CT , USA.,b Yale Cancer Center, Yale University , New Haven , CT , USA.,f Department of Pathology , Yale University , New Haven , CT , USA
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Wang JB, Wang ZW, Li Y, Huang CQ, Zheng CH, Li P, Xie JW, Lin JX, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Lin Y, Huang CM. CDK5RAP3 acts as a tumor suppressor in gastric cancer through inhibition of β-catenin signaling. Cancer Lett 2016; 385:188-197. [PMID: 27793695 DOI: 10.1016/j.canlet.2016.10.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/13/2016] [Accepted: 10/18/2016] [Indexed: 12/18/2022]
Abstract
CDK5RAP3 was isolated as a binding protein of the Cdk5 activator p35. Although CDK5RAP3 has been implicated in cancer progression, its expression and function have not been investigated in gastric cancer. Our study demonstrated that the mRNA and protein levels of CDK5RAP3 were markedly decreased in gastric tumor tissues when compared with respective adjacent non-tumor tissues. CDK5RAP3 in gastric cancer cells significantly reduced cell proliferation, migration, invasion and tumor xenograft growth through inhibition of β-catenin. Secondly, CDK5RAP3 was found to suppress the phosphorylation of GSK-3β (Ser9), leading to the phosphorylation (Ser37/Thr41) and subsequent degradation of β-catenin. Lastly, the prognostic value of CDK5RAP3 for overall survival was found to be dependent on β-catenin cytoplasm/nucleus localization in human gastric cancer samples. Collectively, our results demonstrated that CDK5RAP3 negatively regulates the β-catenin signaling pathway by repressing GSK-3β phosphorylation and could be a potential therapeutic target for gastric cancer.
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Affiliation(s)
- Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Zu-Wei Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Yun Li
- Key Laboratory of the Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, People's Republic of China
| | - Chao-Qun Huang
- College of Life Sciences, Fujian Normal University, Fuzhou 350117, Fujian Province, People's Republic of China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China
| | - Yao Lin
- College of Life Sciences, Fujian Normal University, Fuzhou 350117, Fujian Province, People's Republic of China.
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou 350001, Fujian Province, People's Republic of China.
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Wang Y, Chen CL, Pan QZ, Wu YY, Zhao JJ, Jiang SS, Chao J, Zhang XF, Zhang HX, Zhou ZQ, Tang Y, Huang XQ, Zhang JH, Xia JC. Decreased TPD52 expression is associated with poor prognosis in primary hepatocellular carcinoma. Oncotarget 2016; 7:6323-34. [PMID: 26575170 PMCID: PMC4868759 DOI: 10.18632/oncotarget.6319] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 10/22/2015] [Indexed: 02/07/2023] Open
Abstract
Tumor protein D52 (TPD52) has been indicated to be involved in tumorigenesis of various malignancies. But its role in hepatocellular carcinoma (HCC) is unknown. This study aimed to explore the expression of TPD52 in HCC samples and cell lines using real-time quantitative PCR, western blotting, and immunohistochemistry. The prognostic value of TPD52 in HCC was also analysed. Meanwhile, the mechanism of TPD52 in hepatocarcinogenesis was further investigated by western blotting, immunohistochemistry, over-express and knockdown studies. We found that TPD52 expression was significantly decreased in the HCC tissues and HCC cell lines. TPD52 expression was significantly correlated with tumor-nodes-metastasis (TNM) stage. Kaplan-Meier survival curves showed that high TPD52 expression was associated with improved overall survival (OS) and disease-free survival (DFS) in HCC patients. Multivariate analysis indicated that TPD52 expression was an independent prognostic marker for the OS and DFS of patients. In addition, TPD52 expression was positively correlated with p21 and p53 expression, and was negatively correlated with MDM2, BCL2 and P-GSK-3β expression in HCC. In conclusions, our findings suggested that TPD52 is a potential tumor suppressor in HCC. It may be a novel prognostic biomarker and molecular therapy target for HCC.
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Affiliation(s)
- Ying Wang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Epidemiology and Health Statistics, Guangdong Key Laboratory of Molecular Epidemiology, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chang-Long Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Qiu-Zhong Pan
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ying-Yuan Wu
- Department of Gynaecology and Obstetrics, Panyu Branch of Armed Police Corps Hospital of Guangdong, Guangzhou, China
| | - Jing-Jing Zhao
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Shan-Shan Jiang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jie Chao
- Department of Epidemiology and Health Statistics, Guangdong Key Laboratory of Molecular Epidemiology, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiao-Fei Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hong-Xia Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Zi-Qi Zhou
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yan Tang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Xu-Qiong Huang
- Department of Epidemiology and Health Statistics, Guangdong Key Laboratory of Molecular Epidemiology, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jian-Hua Zhang
- Department of Health Service Management, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jian-Chuan Xia
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
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Sasaki CT, Issaeva N, Vageli DP. In vitro model for gastroduodenal reflux-induced nuclear factor-kappaB activation and its role in hypopharyngeal carcinogenesis. Head Neck 2015; 38 Suppl 1:E1381-91. [DOI: 10.1002/hed.24231] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2015] [Indexed: 12/16/2022] Open
Affiliation(s)
- Clarence T. Sasaki
- Department of Surgery, Section of Otolaryngology; Yale School of Medicine; New Haven Connecticut
| | - Natalia Issaeva
- Department of Surgery, Section of Otolaryngology; Yale School of Medicine; New Haven Connecticut
| | - Dimitra P. Vageli
- Department of Surgery, Section of Otolaryngology; Yale School of Medicine; New Haven Connecticut
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40
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Bosio C, Tomasoni G, Martínez R, Olea AF, Carrasco H, Villena J. Cytotoxic and apoptotic effects of leptocarpin, a plant-derived sesquiterpene lactone, on human cancer cell lines. Chem Biol Interact 2015; 242:415-21. [PMID: 26562779 DOI: 10.1016/j.cbi.2015.11.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 10/18/2015] [Accepted: 11/04/2015] [Indexed: 12/25/2022]
Abstract
Sesquiterpene lactones have attracted much attention in drug research because they present a series of biological activities such as anticancer, antifungal, anti-inflammatory, antimicrobial and antioxidant. Leptocarpin (LTC) is a sesquiterpene lactone isolated from a native Chilean plant, Leptocarpha rivularis, which has been widely used in traditional medicine by Mapuche people. Previous work has demonstrated that LTC decreases cell viability of cancer cell lines. In this contribution, we analyze the mechanism of LTC cytotoxicity on different cancer cell lines. The results show that in all cases LTC induces an apoptotic process and inhibition of NF-κB. Apoptosis has been confirmed by observing condensation of chromatin, nuclear fragmentation, release of cytochrome c into the cytosol, and increasing of caspase-3 activity. It has also been found that LTC is an effective inhibitor of NF-κB, which suggests that leptocarpin-induced cytotoxicity involves in some degree the inhibition of NF-κB signaling pathway. The concentration at which LTC inhibits NF-κB activity to the control level is similar or even lower than that found for parthenolide and others sesquiterpene lactones. These results indicate that leptocarpine is a very interesting molecule that could be considered as therapeutic agent for cancer treatment.
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Affiliation(s)
- Claudia Bosio
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, Quillota 910, Viña del Mar, 2520000, Chile.
| | - Giacomo Tomasoni
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, Quillota 910, Viña del Mar, 2520000, Chile.
| | - Rolando Martínez
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, Quillota 910, Viña del Mar, 2520000, Chile.
| | - Andrés F Olea
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Llano Subercaseaux 2801, San Miguel, Santiago, Chile.
| | - Héctor Carrasco
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Llano Subercaseaux 2801, San Miguel, Santiago, Chile.
| | - Joan Villena
- Centro de Investigaciones Biomédicas (CIB), Escuela de Medicina, Universidad de Valparaíso, Av. Hontaneda 2664, Valparaíso, 234000, Chile.
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Lin KY, Kao SH, Lai CM, Chen CT, Wu CY, Hsu HJ, Wang WD. Tumor Suppressor Lzap Suppresses Wnt/β-Catenin Signaling to Promote Zebrafish Embryonic Ventral Cell Fates via the Suppression of Inhibitory Phosphorylation of Glycogen Synthase Kinase 3. J Biol Chem 2015; 290:29808-19. [PMID: 26475862 DOI: 10.1074/jbc.m115.669309] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Indexed: 11/06/2022] Open
Abstract
Wnt/β-catenin signaling controls various cell fates in metazoan development, and its dysregulation is often associated with cancer formation. However, regulations of this signaling pathway are not completely understood. Here, we report that Lzap, a tumor suppressor, controls nuclear translocation of β-catenin. In zebrafish embryos disruption of lzap increases the expression of chordin (chd), which encodes a bone morphogenetic protein (BMP) antagonist that is localized in prospective dorsal cells and promotes dorsal fates. Consistently, lzap-deficient embryos with attenuated BMP signaling are dorsalized, which can be rescued by overexpression of zebrafish lzap or bmp2b or human LZAP. The expansion of chd expression in embryos lacking lzap is due to the accumulation of nuclear β-catenin in ventral cells, in which β-catenin is usually degraded. Furthermore, the activity of GSK3, a master regulator of β-catenin degradation, is suppressed in lzap-deficient embryos via inhibitory phosphorylation. Finally, we also report that a similar regulatory axis is also likely to be present in a human tongue carcinoma cell line, SAS. Our results reveal that Lzap is a novel regulator of GSK3 for the maintenance of ventral cell properties and may prevent carcinogenesis via the regulation of β-catenin degradation.
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Affiliation(s)
- Kun-Yang Lin
- From the Institute of Cellular and Organismic Biology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan, Department of BioAgricultural Science, National Chiayi University, Chiayi 60004, Taiwan, and
| | - Shih-Han Kao
- From the Institute of Cellular and Organismic Biology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan
| | - Chun-Ming Lai
- From the Institute of Cellular and Organismic Biology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan, Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, National Chung-Hsing University and Academia Sinica, Taipei 11529, Taiwan
| | - Ciao-Ting Chen
- Department of BioAgricultural Science, National Chiayi University, Chiayi 60004, Taiwan, and
| | - Chang-Yi Wu
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung City 80424, Taiwan
| | - Hwei-Jan Hsu
- From the Institute of Cellular and Organismic Biology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan,
| | - Wen-Der Wang
- Department of BioAgricultural Science, National Chiayi University, Chiayi 60004, Taiwan, and
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Yoo HM, Park JH, Jeon YJ, Chung CH. Ubiquitin-fold modifier 1 acts as a positive regulator of breast cancer. Front Endocrinol (Lausanne) 2015; 6:36. [PMID: 25852645 PMCID: PMC4367433 DOI: 10.3389/fendo.2015.00036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 03/03/2015] [Indexed: 12/20/2022] Open
Abstract
Estrogen receptor-α (ERα) is a steroid hormone-sensitive transcription factor that plays a critical role in development of breast cancer. The binding of estrogen to ERα triggers the recruitment of transcriptional co-activators as well as chromatin remodeling factors to estrogen-responsive elements (ERE) of ERα target genes. This process is tightly associated with post-translational modifications (PTMs) of ERα and its co-activators for promotion of transcriptional activation, which leads to proliferation of a large subset of breast tumor cells. These PTMs include phosphorylation, acetylation, methylation, and conjugation by ubiquitin and ubiquitin-like proteins. Ubiquitin-fold modifier 1 (UFM1), one of ubiquitin-like proteins, has recently been shown to be ligated to activating signal co-integrator 1 (ASC1), which acts as a transcriptional co-activator of nuclear receptors. Here, we discuss the mechanistic connection between ASC1 modification by UFM1 and ERα transactivation, and highlight how the interplay of these processes is involved in development of breast cancer. We also discuss potential use of UFM1-conjugating system as therapeutic targets against not only breast cancer but also other nuclear receptor-mediated cancers.
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Affiliation(s)
- Hee Min Yoo
- Institute for Protein Metabolism, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Jong Ho Park
- Institute for Protein Metabolism, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Young Joo Jeon
- Institute for Protein Metabolism, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Chin Ha Chung
- Institute for Protein Metabolism, School of Biological Sciences, Seoul National University, Seoul, South Korea
- *Correspondence: Chin Ha Chung, Institute for Protein Metabolism, School of Biological Sciences, Seoul National University, 56-1 Shillim-dong, Gwanak-gu, Seoul 151-742, South Korea e-mail:
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Abstract
PAKs 4, 5 and 6 are members of the group B family of p21-activated kinases. Among this group, PAK4 has been most extensively studied. While it has essential roles in embryonic development, in adults high levels of PAK4 are frequently associated with cancer. PAK4 is overexpressed in a variety of cancers, and the Pak4 gene is amplified in some cancers. PAK4 overexpression is sufficient to cause oncogenic transformation in cells and in mouse models. The tight connection between PAK4 and cancer make it a promising diagnostic tool as well as a potential drug target. The group B PAKs also have important developmental functions. PAK4 is important for many early developmental processes, while PAK5 and PAK6 play roles in learning and memory in mice. This chapter provides an overview of the roles of the group B PAKs in cancer as well as development, and includes a discussion of PAK mediated signaling pathways and cellular functions.
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Affiliation(s)
- Audrey Minden
- Susan Lehman Cullman Laboratory for Cancer Research; Department of Chemical Biology; Ernest Mario School of Pharmacy; Rutgers, The State University of New Jersey; Piscataway, NJ USA
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Lu X, Yarbrough WG. Negative regulation of RelA phosphorylation: emerging players and their roles in cancer. Cytokine Growth Factor Rev 2014; 26:7-13. [PMID: 25438737 DOI: 10.1016/j.cytogfr.2014.09.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 09/03/2014] [Indexed: 01/25/2023]
Abstract
NF-κB signaling contributes to human disease processes, notably inflammatory diseases and cancer. Many advances have been made in understanding mechanisms responsible for abnormal NF-κB activation with RelA post-translational modification, particularly phosphorylation, proven to be critical for RelA function. While the majority of studies have focused on identifying kinases responsible for NF-κB phosphorylation and pathway activation, recently progress has also been made in understanding the negative regulators important for restraining RelA activity. Here we summarize negative regulators of RelA phosphorylation, their targeting sites in RelA and biological functions through negative regulation of RelA activation. Finally, we emphasize the tumor suppressor-like roles that these negative regulators can assume in human cancers.
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Affiliation(s)
- Xinyuan Lu
- Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA; Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Wendell G Yarbrough
- Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA; Department of Pathology, Yale University, New Haven, CT, USA; Yale Cancer Center, New Haven, CT, USA.
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Jiang SS, Weng DS, Wang QJ, Pan K, Zhang YJ, Li YQ, Li JJ, Zhao JJ, He J, Lv L, Pan QZ, Xia JC. Galectin-3 is associated with a poor prognosis in primary hepatocellular carcinoma. J Transl Med 2014; 12:273. [PMID: 25260879 PMCID: PMC4179848 DOI: 10.1186/s12967-014-0273-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 09/19/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Galectin-3, a member of the beta-galactoside-binding lectin family, is a multifunctional protein with various biological functions, including the proliferation and differentiation of tumor cells, angiogenesis, cancer progression, and metastasis. We aimed to clarify if expression of galectin-3 is related to the clinicopathological characteristics and prognosis of hepatocellular carcinoma (HCC) patients, and to explore the possible mechanisms of galectin-3 in hepatocellular carcinoma. METHODS First, we investigated galectin-3 mRNA and protein expression by using RT-PCR and Western blotting. Second, tissues from 165 HCC patients were used to evaluate clinicopathological characteristics and prognosis through immunohistochemical analyses. Furthermore, the functions of galectin-3 were analyzed with respect to the proliferation, cell cycle,apoptosis, migration, and invasion of HCC cell lines. Finally, we analyzed galectin-3 expression and micro-vessel density (MVD) by immunohistochemistry (IHC) to find its correlation with angiogenesis in Hepatocellular Carcinoma. Flow cytometer was used to explore apoptosis and Western-blot was used to detect the pathway proteins of apoptosis. RESULTS Galectin-3 showed high expression at the mRNA and protein levels in HCC cancer tissues and cell lines. Clinicopathological analyses revealed that increased expression of galectin-3 in tumors was closely associated with a poor prognosis. Galectin-3 knockdown by siRNA significantly inhibited cell growth, migration, and invasion, and induced apoptosis in HCC cells in vitro, whereas galectin-3 overexpression promoted cell growth, migration, and invasion. Correlation analysis of galectin-3 expression and micro-vessel density (MVD) showed that galectin-3 expression in tumor cells stimulates angiogenesis. The observed regulation of cell apoptosis was accompanied by the galectin-3-mediated modulation of caspase3 signaling pathways in HCC cells. CONCLUSIONS These data suggest that galectin-3 plays an important part in HCC progression and may serve as a prognostic factor for HCC.
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46
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Yang L, Karin M. Roles of tumor suppressors in regulating tumor-associated inflammation. Cell Death Differ 2014. [PMID: 25190145 DOI: 10.1038/cdd.2014.131.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Loss or silencing of tumor suppressors (TSs) promotes neoplastic transformation and malignant progression. To date, most work on TS has focused on their cell autonomous effects. Recent evidence, however, demonstrates an important noncell autonomous role for TS in the control of tumor-associated inflammation. We review evidence from clinical data sets and mouse model studies demonstrating enhanced inflammation and altered tumor microenvironment (TME) upon TS inactivation. We discuss clinical correlations between tumor-associated inflammation and inactivation of TS, and their therapeutic implications. This review sets forth the concept that TS can also suppress tumor-associated inflammation, a concept that provides new insights into tumor-host interactions. We also propose that in some cases the loss of TS function in cancer can be overcome through inhibition of the resulting inflammatory response, regardless whether it is a direct or an indirect consequence of TS loss.
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Affiliation(s)
- L Yang
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, NIH, 37 Convent Drive, Bethesda, MD, USA
| | - M Karin
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, USA
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Yang L, Karin M. Roles of tumor suppressors in regulating tumor-associated inflammation. Cell Death Differ 2014; 21:1677-86. [PMID: 25190145 PMCID: PMC4211367 DOI: 10.1038/cdd.2014.131] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/11/2014] [Accepted: 07/21/2014] [Indexed: 12/21/2022] Open
Abstract
Loss or silencing of tumor suppressors (TSs) promotes neoplastic transformation and malignant progression. To date, most work on TS has focused on their cell autonomous effects. Recent evidence, however, demonstrates an important noncell autonomous role for TS in the control of tumor-associated inflammation. We review evidence from clinical data sets and mouse model studies demonstrating enhanced inflammation and altered tumor microenvironment (TME) upon TS inactivation. We discuss clinical correlations between tumor-associated inflammation and inactivation of TS, and their therapeutic implications. This review sets forth the concept that TS can also suppress tumor-associated inflammation, a concept that provides new insights into tumor-host interactions. We also propose that in some cases the loss of TS function in cancer can be overcome through inhibition of the resulting inflammatory response, regardless whether it is a direct or an indirect consequence of TS loss.
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Affiliation(s)
- L Yang
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, NIH, 37 Convent Drive, Bethesda, MD, USA
| | - M Karin
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, USA
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Pal S, Bhattacharjee A, Ali A, Mandal NC, Mandal SC, Pal M. Chronic inflammation and cancer: potential chemoprevention through nuclear factor kappa B and p53 mutual antagonism. JOURNAL OF INFLAMMATION-LONDON 2014; 11:23. [PMID: 25152696 PMCID: PMC4142057 DOI: 10.1186/1476-9255-11-23] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 06/28/2014] [Indexed: 12/13/2022]
Abstract
Activation of nuclear factor-kappa B (NF- κB) as a mechanism of host defense against infection and stress is the central mediator of inflammatory responses. A normal (acute) inflammatory response is activated on urgent basis and is auto-regulated. Chronic inflammation that results due to failure in the regulatory mechanism, however, is largely considered as a critical determinant in the initiation and progression of various forms of cancer. Mechanistically, NF- κB favors this process by inducing various genes responsible for cell survival, proliferation, migration, invasion while at the same time antagonizing growth regulators including tumor suppressor p53. It has been shown by various independent investigations that a down regulation of NF- κB activity directly, or indirectly through the activation of the p53 pathway reduces tumor growth substantially. Therefore, there is a huge effort driven by many laboratories to understand the NF- κB signaling pathways to intervene the function of this crucial player in inflammation and tumorigenesis in order to find an effective inhibitor directly, or through the p53 tumor suppressor. We discuss here on the role of NF- κB in chronic inflammation and cancer, highlighting mutual antagonism between NF- κB and p53 pathways in the process. We also discuss prospective pharmacological modulators of these two pathways, including those that were already tested to affect this mutual antagonism.
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Affiliation(s)
- Srabani Pal
- Pharmacognosy and Phytotherapy laboratory, Division of Pharmacognosy, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Ashish Bhattacharjee
- Department of Biotechnology, National Institute of Technology, Durgapur-713209, India
| | - Asif Ali
- Division of Molecular Medicine, Bose Institute, Kolkata 700054, India
| | | | - Subhash C Mandal
- Pharmacognosy and Phytotherapy laboratory, Division of Pharmacognosy, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Mahadeb Pal
- Division of Molecular Medicine, Bose Institute, Kolkata 700054, India
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The putative tumor suppressor C53 interacts with the human telomerase reverse transcriptase hTERT and regulates telomerase activity. CHINESE SCIENCE BULLETIN-CHINESE 2014. [DOI: 10.1007/s11434-014-0184-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Lu X, An H, Jin R, Zou M, Guo Y, Su PF, Liu D, Shyr Y, Yarbrough WG. PPM1A is a RelA phosphatase with tumor suppressor-like activity. Oncogene 2013; 33:2918-27. [PMID: 23812431 DOI: 10.1038/onc.2013.246] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 05/06/2013] [Accepted: 05/20/2013] [Indexed: 12/28/2022]
Abstract
Nuclear factor-κB (NF-κB) signaling contributes to human disease processes, notably inflammatory diseases and cancer. NF-κB has a role in tumorigenesis and tumor growth, as well as promotion of metastases. Mechanisms responsible for abnormal NF-κB activation are not fully elucidated; however, RelA phosphorylation, particularly at serine residues S536 and S276, is critical for RelA function. Kinases that phosphorylate RelA promote oncogenic behaviors, suggesting that phosphatases targeting RelA could have tumor-inhibiting activities; however, few RelA phosphatases have been identified. Here, we identified tumor inhibitory and RelA phosphatase activities of the protein phosphatase 2C (PP2C) phosphatase family member, PPM1A. We show that PPM1A directly dephosphorylated RelA at residues S536 and S276 and selectively inhibited NF-κB transcriptional activity, resulting in decreased expression of monocyte chemotactic protein-1/chemokine (C-C motif) ligand 2 and interleukin-6, cytokines implicated in cancer metastasis. PPM1A depletion enhanced NF-κB-dependent cell invasion, whereas PPM1A expression inhibited invasion. Analyses of human expression data revealed that metastatic prostate cancer deposits had lower PPM1A expression compared with primary tumors without distant metastases. A hematogenous metastasis mouse model revealed that PPM1A expression inhibited bony metastases of prostate cancer cells after vascular injection. In summary, our findings suggest that PPM1A is a RelA phosphatase that regulates NF-κB activity and that PPM1A has tumor suppressor-like activity. Our analyses also suggest that PPM1A inhibits prostate cancer metastases and as neither gene deletions nor inactivating mutations of PPM1A have been described, increasing PPM1A activity in tumors represents a potential therapeutic strategy to inhibit NF-κB signaling or bony metastases in human cancer.
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Affiliation(s)
- X Lu
- Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA
| | - H An
- 1] Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA [2] Division of Surgical Sciences, Vanderbilt University, Nashville, TN, USA
| | - R Jin
- 1] Vanderbilt Prostate Cancer Center, Vanderbilt University, Nashville, TN, USA [2] Department of Urology, Vanderbilt University, Nashville, TN, USA
| | - M Zou
- Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA
| | - Y Guo
- Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA
| | - P-F Su
- Department of Biostatistics, Vanderbilt University, Nashville, TN, USA
| | - D Liu
- Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA
| | - Y Shyr
- Department of Biostatistics, Vanderbilt University, Nashville, TN, USA
| | - W G Yarbrough
- 1] Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA [2] Department of Pathology, Yale University, New Haven, CT, USA [3] Yale Cancer Center, New Haven, CT, USA
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