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Kazemein Jasemi NS, Mehrabipour M, Magdalena Estirado E, Brunsveld L, Dvorsky R, Ahmadian MR. Functional Classification and Interaction Selectivity Landscape of the Human SH3 Domain Superfamily. Cells 2024; 13:195. [PMID: 38275820 PMCID: PMC10814857 DOI: 10.3390/cells13020195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
SRC homology 3 (SH3) domains are critical interaction modules that orchestrate the assembly of protein complexes involved in diverse biological processes. They facilitate transient protein-protein interactions by selectively interacting with proline-rich motifs (PRMs). A database search revealed 298 SH3 domains in 221 human proteins. Multiple sequence alignment of human SH3 domains is useful for phylogenetic analysis and determination of their selectivity towards PRM-containing peptides (PRPs). However, a more precise functional classification of SH3 domains is achieved by constructing a phylogenetic tree only from PRM-binding residues and using existing SH3 domain-PRP structures and biochemical data to determine the specificity within each of the 10 families for particular PRPs. In addition, the C-terminal proline-rich domain of the RAS activator SOS1 covers 13 of the 14 recognized proline-rich consensus sequence motifs, encompassing differential PRP pattern selectivity among all SH3 families. To evaluate the binding capabilities and affinities, we conducted fluorescence dot blot and polarization experiments using 25 representative SH3 domains and various PRPs derived from SOS1. Our analysis has identified 45 interacting pairs, with binding affinities ranging from 0.2 to 125 micromolar, out of 300 tested and potential new SH3 domain-SOS1 interactions. Furthermore, it establishes a framework to bridge the gap between SH3 and PRP interactions and provides predictive insights into the potential interactions of SH3 domains with PRMs based on sequence specifications. This novel framework has the potential to enhance the understanding of protein networks mediated by SH3 domain-PRM interactions and be utilized as a general approach for other domain-peptide interactions.
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Affiliation(s)
- Neda S. Kazemein Jasemi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (N.S.K.J.); (M.M.); (R.D.)
| | - Mehrnaz Mehrabipour
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (N.S.K.J.); (M.M.); (R.D.)
| | - Eva Magdalena Estirado
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands; (E.M.E.); (L.B.)
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands; (E.M.E.); (L.B.)
| | - Radovan Dvorsky
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (N.S.K.J.); (M.M.); (R.D.)
| | - Mohammad R. Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (N.S.K.J.); (M.M.); (R.D.)
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Li X, Liu C, Zhang Z, Li X, Yao Z, Dong Y, Wang X, Chen Z. Hepatocyte-specific Wtap deficiency promotes hepatocellular carcinoma by activating GRB2-ERK depending on downregulation of proteasome-related genes. J Biol Chem 2023; 299:105301. [PMID: 37777158 PMCID: PMC10630636 DOI: 10.1016/j.jbc.2023.105301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/05/2023] [Accepted: 09/18/2023] [Indexed: 10/02/2023] Open
Abstract
Wilm's tumor 1-associating protein (WTAP), a regulatory protein of the m6A methyltransferase complex, has been found to play a role in regulating various physiological and pathological processes. However, the in vivo role of WTAP in the pathogenesis of hepatocellular carcinoma (HCC) is unknown. In this study, we have elucidated the crucial role of WTAP in HCC progression and shown that hepatic deletion of Wtap promotes HCC pathogenesis through activation of multiple signaling pathways. A single dose of diethylnitrosamine injection causes more and larger HCCs in hepatocyte-specific Wtap knockout (Wtap-HKO) mice than Wtapflox/flox mice fed with either normal chow diet or a high-fat diet. Elevated CD36, IGFBP1 (insulin-like growth factor-binding protein 1), and chemokine (C-C motif) ligand 2 (CCL2) expression leads to steatosis and inflammation in the Wtap-HKO livers. The hepatocyte proliferation is dramatically increased in Wtap-HKO mice, which is due to higher activation of extracellular signal-regulated kinase (ERK) and signal transducer and activator of transcription-3 signaling pathways. Hepatic deletion of Wtap activates the ERK signaling pathway by increasing the protein stability of GRB2 and ERK1/2, which is due to the decreased expression of proteasome-related genes. Restoring PSMB4 or PSMB6 (two key components of the proteasome) leads to the downregulation of GRB2 and ERK1/2 in Wtap-HKO hepatocytes. Mechanistically, WTAP interacts with RNA polymerase II and H3K9ac to maintain expression of proteasome-related genes. These results demonstrate that hepatic deletion of Wtap promotes HCC progression through activating GRB2-ERK1/2-mediated signaling pathway depending on the downregulation of proteasome-related genes especially Psmb4 and Psmb6.
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Affiliation(s)
- Xinzhi Li
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Chunhong Liu
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Zhimin Zhang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Xueying Li
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Zhicheng Yao
- Department of General surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanbin Dong
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xin Wang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Zheng Chen
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
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Huang Y, Zhao H, Shi X, Liu J, Lin JM, Ma Q, Jiang S, Pu W, Ma Y, Liu J, Wu W, Wang J, Liu Q. GRB2 serves as a viable target against skin fibrosis in systemic sclerosis by regulating endothelial cell apoptosis. J Dermatol Sci 2023; 111:109-119. [PMID: 37661474 DOI: 10.1016/j.jdermsci.2023.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/30/2023] [Accepted: 07/02/2023] [Indexed: 09/05/2023]
Abstract
BACKGROUND Systemic Sclerosis (SSc) is an autoimmune disease characterized by vascular and immune system dysfunction, along with tissue fibrosis. Our previous study found GRB2 was downregulated by salvianolic acid B, a small molecule drug that attenuated skin fibrosis of SSc. OBJECTIVES Here we aim to investigate the role of GRB2 in SSc. METHODS The microarray data of SSc skin biopsies in Caucasians were obtained from the Gene Expression Omnibus (GEO) database. The expression of GRB2 was further detected in Chinese SSc and healthy controls. Bleomycin (BLM)-induced skin fibrosis mice were used to explore how GRB2 downregulation affected fibrosis. The apoptosis of EA.hy926 endothelial cells was induced by H2O2 and apoptosis ratio was measured by flow cytometric. Transcriptome and phosphoproteomic analyses were performed to explore the regulated pathway. RESULTS The expression of GRB2 was significantly enhanced in SSc patient skin, 1.51-fold in Caucasians and 1.40-fold in Chinese. Double immunofluorescence staining showed the endothelial cells of SSc patient's skin highly expressed GRB2. The in vivo study revealed that GRB2 knockdown alleviated skin fibrosis and apoptosis of endothelial cells in BLM mouse skin. The in vitro study showed that GRB2 downregulation inhibited the apoptosis of EA.hy926 and protected them from H2O2-induced hyperpermeability. Moreover, transcriptome and phosphoproteomic analysis suggested the focal adhesion pathway was enriched in GRB2 siRNA transfected endothelial cells. CONCLUSIONS Our results demonstrated GRB2 highly expressed in endothelial cells of SSc skin, and inhibiting GRB2 could effectively attenuate BLM-induced skin fibrosis and endothelial cell apoptosis. GRB2 is expected to be a new therapeutic target for SSc.
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Affiliation(s)
- Yan Huang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Han Zhao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Nanjing Intellectual Property Protection Center, Nanjing, China
| | - Xiangguang Shi
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China
| | - Jing Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jui-Ming Lin
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China
| | - Qianqian Ma
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Shuai Jiang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Weilin Pu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Yanyun Ma
- Institute for Six-sector Economy, Fudan University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Jianlan Liu
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China
| | - Wenyu Wu
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China; Department of Dermatology, Jing' an District Central Hospital, Shanghai, China.
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China; Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058), Chinese Academy of Medical Sciences, China.
| | - Qingmei Liu
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China.
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Zhou J, Tu D, Peng R, Tang Y, Deng Q, Su B, Wang S, Tang H, Jin S, Jiang G, Wang Q, Jin X, Zhang C, Cao J, Bai D. RNF173 suppresses RAF/MEK/ERK signaling to regulate invasion and metastasis via GRB2 ubiquitination in Hepatocellular Carcinoma. Cell Commun Signal 2023; 21:224. [PMID: 37626338 PMCID: PMC10464048 DOI: 10.1186/s12964-023-01241-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/22/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The role of the membrane-associated RING-CH (MARCH) family in carcinogenesis has been widely studied, but the member of this family, RNF173, has not yet been thoroughly explored in the context of hepatocellular carcinoma (HCC). METHODS With the use of an HCC tissue microarray and IHC staining, we aim to determine the differential expression of RNF173 in HCC patients and its clinical significance. The biological role of RNF173 is investigated through in vitro and in vivo experiments. RNA sequencing, mass spectrometry, and immunoprecipitation are performed to uncover the underlying mechanism of RNF173's impact on the development of HCC. RESULTS The mRNA and protein levels of RNF173 were significantly lower in HCC tissues than in normal tissues. HCC patients with low RNF173 expression had shorter overall survival and recurrence-free survival, and RNF173 was significantly correlated with tumor number, tumor capsule, tumor differentiation, and BCLC stage. In addition, in vitro and in vivo experiments showed that RNF173 downregulation exacerbated tumor progression, including migration, invasion, and proliferation. GRB2 is a key molecule in the RAF/MEK/ERK pathway. RNF173 inhibits the RAF/MEK/ERK signaling by ubiquitinating and degrading GRB2, thereby suppressing HCC cell proliferation, invasion and migration. Combining clinical samples, we found that HCC patients with high RNF173 and low GRB2 expression had the best prognosis. CONCLUSION RNF173 inhibits the invasion and metastasis of HCC by ubiquitinating and degrading GRB2, thereby suppressing the RAF/MEK/ERK signaling pathway. RNF173 is an independent risk factor for the survival and recurrence of HCC patients. RNF173 may serve as a novel prognostic molecule and potential therapeutic target for HCC. Video Abstract Graphical abstract Model of RNF173 on RAF/MEK/ERK signaling. RNF173 knockdown resulted in impaired ubiquitination and degradation of GRB2, leading to the activation of the RAF/MEK/ERK signaling pathway and promotion of invasion and metastasis in HCC cells.
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Affiliation(s)
- Jie Zhou
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Daoyuan Tu
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Rui Peng
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Yuhong Tang
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Qiangwei Deng
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Bingbing Su
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Shunyi Wang
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Hao Tang
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Shengjie Jin
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Guoqing Jiang
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Qian Wang
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Xin Jin
- Biobank, Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Chi Zhang
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China.
- Subei People's Hospital Hepatobiliary Surgery. Institute of General Surgery, Yangzhou, 225001, China.
| | - Jun Cao
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China.
| | - Dousheng Bai
- Department of Hepatobiliary Surgery, Clinical Medical College, Yangzhou University, Yangzhou, 225009, China.
- Subei People's Hospital Hepatobiliary Surgery. Institute of General Surgery, Yangzhou, 225001, China.
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Clark JF, Soriano P. FRS2-independent GRB2 interaction with FGFR2 is not required for embryonic development. Biol Open 2023; 12:bio059942. [PMID: 37421147 PMCID: PMC10399203 DOI: 10.1242/bio.059942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023] Open
Abstract
FGF activation is known to engage canonical signals, including ERK/MAPK and PI3K/AKT, through various effectors including FRS2 and GRB2. Fgfr2FCPG/FCPG mutants that abrogate canonical intracellular signaling exhibit a range of mild phenotypes but are viable, in contrast to embryonic lethal Fgfr2-/- mutants. GRB2 has been reported to interact with FGFR2 through a non-traditional mechanism, by binding to the C-terminus of FGFR2 independently of FRS2 recruitment. To investigate whether this interaction provides functionality beyond canonical signaling, we generated mutant mice harboring a C-terminal truncation (T). We found that Fgfr2T/T mice are viable and have no distinguishable phenotype, indicating that GRB2 binding to the C-terminal end of FGFR2 is not required for development or adult homeostasis. We further introduced the T mutation on the sensitized FCPG background but found that Fgfr2FCPGT/FCPGT mutants did not exhibit significantly more severe phenotypes. We therefore conclude that, although GRB2 can bind to FGFR2 independently of FRS2, this binding does not have a critical role in development or homeostasis.
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Affiliation(s)
- James F. Clark
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Philippe Soriano
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Jin ML, Gong Y, Peng J, Hu X, Shao ZM. In Vivo CRISPR Screens Identify RhoV as a Pro-Metastasis Factor of Triple-Negative Breast Cancer. Cancer Sci 2023. [PMID: 36898847 DOI: 10.1111/cas.15783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 01/28/2023] [Accepted: 03/03/2023] [Indexed: 03/12/2023] Open
Abstract
Metastasis is the main death reason for triple-negative breast cancer (TNBC). Thus, identifying the driver genes associated with metastasis of TNBC is urgently needed. CRISPR screens have dramatically enhanced genome editing and made it possible to identify genes associated with metastasis. In this study, we identified and explored the crucial role of Ras Homolog Family Member V (RhoV) in TNBC metastasis. Here, we performed customized in vivo CRISPR screens targeting metastasis-related genes obtained from transcriptome analysis of TNBC. The regulatory role of RhoV in TNBC was validated using gain- or loss-of-function studies in vitro and in vivo. We further conducted immunoprecipitation and LC-MS/MS to explore the metastasis mechanism of RhoV. In vivo functional screens identified RhoV as a candidate regulator involving in tumor metastasis. RhoV was frequently upregulated in TNBC and correlated with poor survival. Knockdown of RhoV significantly suppressed cell invasion, migration and metastasis both in vitro and in vivo. In addition, we provided evidence that p-EGFR interacted with RhoV to activate downstream signal pathway of RhoV, thereby promoting tumor metastasis. We further confirmed that this association was dependent on GRB2 through a specific proline-rich motif in N-terminus of RhoV. This mechanism of RhoV is unique since other Rho family proteins lacks the proline-rich motif in N-terminus.
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Affiliation(s)
- Ming-Liang Jin
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University, Shanghai Cancer Center, Fudan University, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China
| | - Yue Gong
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University, Shanghai Cancer Center, Fudan University, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China
| | - Ji Peng
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University, Shanghai Cancer Center, Fudan University, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China
| | - Xin Hu
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University, Shanghai Cancer Center, Fudan University, Shanghai, 200032, China.,Precision Cancer Medicine Center, 200032, Shanghai, China
| | - Zhi-Ming Shao
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University, Shanghai Cancer Center, Fudan University, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China.,Institutes of Biomedical Science, Fudan University, 200032, Shanghai, China
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Hartl I, Brumovska V, Striedner Y, Yasari A, Schütz GJ, Sevcsik E, Tiemann-Boege I. Measurement of FGFR3 signaling at the cell membrane via total internal reflection fluorescence microscopy to compare the activation of FGFR3 mutants. J Biol Chem 2023; 299:102832. [PMID: 36581204 PMCID: PMC9900515 DOI: 10.1016/j.jbc.2022.102832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/28/2022] Open
Abstract
Fibroblast growth factor receptors (FGFRs) initiate signal transduction via the RAS/mitogen-activated protein kinase pathway by their tyrosine kinase activation known to determine cell growth, tissue differentiation, and apoptosis. Recently, many missense mutations have been reported for FGFR3, but we only know the functional effect for a handful of them. Some mutations result in aberrant FGFR3 signaling and are associated with various genetic disorders and oncogenic conditions. Here, we employed micropatterned surfaces to specifically enrich fluorophore-tagged FGFR3 (monomeric GFP [mGFP]-FGFR3) in certain areas of the plasma membrane of living cells. We quantified receptor activation via total internal reflection fluorescence microscopy of FGFR3 signaling at the cell membrane that captured the recruitment of the downstream signal transducer growth factor receptor-bound 2 (GRB2) tagged with mScarlet (GRB2-mScarlet) to FGFR3 micropatterns. With this system, we tested the activation of FGFR3 upon ligand addition (fgf1 and fgf2) for WT and four FGFR3 mutants associated with congenital disorders (G380R, Y373C, K650Q, and K650E). Our data showed that ligand addition increased GRB2 recruitment to WT FGFR3, with fgf1 having a stronger effect than fgf2. For all mutants, we found an increased basal receptor activity, and only for two of the four mutants (G380R and K650Q), activity was further increased upon ligand addition. Compared with previous reports, two mutant receptors (K650Q and K650E) had either an unexpectedly high or low activation state, respectively. This can be attributed to the different methodology, since micropatterning specifically captures signaling events at the plasma membrane. Collectively, our results provide further insight into the functional effects of mutations to FGFR3.
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Affiliation(s)
- Ingrid Hartl
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | | | - Yasmin Striedner
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | - Atena Yasari
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | | | - Eva Sevcsik
- Insitute of Applied Physics, TU Wien, Vienna, Austria.
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Teng Y, Ren F, Wang Y, Xu H, Song H. Circ_0033596 depletion ameliorates oxidized low-density lipoprotein-induced human umbilical vein endothelial cell damage. Clin Hemorheol Microcirc 2023:CH221686. [PMID: 36683505 DOI: 10.3233/ch-221686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Previous data have shown that circ_0033596 is involved in the pathogenesis of atherosclerosis (AS). The study aims to reveal the detailed mechanism of circ_0033596 in AS. METHODS Human umbilical vein endothelial cells (HUVECs) were treated with oxidized low-density lipoprotein (ox-LDL) to establish an AS cell model. Quantitative real-time polymerase chain reaction and western blot were implemented to detect the expression of circ_0033596, miR-637, growth factor receptor bound protein2 (GRB2), BCL2-associated x protein (Bax) and B-cell lymphoma-2 (Bcl-2). Cell viability, proliferation, apoptosis and tube formation were investigated by cell counting kit-8, EdU assay, flow cytometry and tube formation assay, respectively. The production of interleukin (IL-6) and tumor necrosis factor-α (TNF-α) was evaluated by enzyme-linked immunosorbent assay. Oxidative stress was evaluated by lipid peroxidation malondialdehyde assay kit and superoxide dismutase activity assay kit. Dual-luciferase reporter assay, RNA pull-down assay and RIP assay were performed to identify the associations among circ_0033596, miR-637 and GRB2. RESULTS The expression of circ_0033596 and GRB2 was significantly increased, while miR-637 was decreased in the blood of AS patients and ox-LDL-induced HUVECs compared with controls. Ox-LDL treatment inhibited HUVEC viability, proliferation and angiogenic ability and induced cell apoptosis, inflammation and oxidative stress, while these effects were attenuated after circ_0033596 knockdown. Circ_0033596 interacted with miR-637 and regulated ox-LDL-induced HUVEC damage by targeting miR-637. In addition, GRB2, a target gene of miR-637, participated in ox-LDL-induced HUVEC injury by combining with miR-637. Importantly, circ_0033596 activated GRB2 by interacting with miR-637. CONCLUSION Circ_0033596 depletion protected against ox-LDL-induced HUVEC injury by miR-637/GRB2 pathway, providing a therapeutic target for AS.
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Affiliation(s)
- Yanling Teng
- Department of Cardiac Function, the First People's Hospital of Lianyungang, the First Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang City, Jiangsu, China
| | - Fei Ren
- Department of Cardiac Function, the First People's Hospital of Lianyungang, the First Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang City, Jiangsu, China
| | - Yanan Wang
- Department of Cardiac Function, the First People's Hospital of Lianyungang, the First Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang City, Jiangsu, China
| | - Hua Xu
- Department of Rehabilitation, Geriatric Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hejian Song
- Department of Cardiovascular Division, the First People's Hospital of Lianyungang, the First Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang City, Jiangsu, China
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9
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Durand A, Winkler CA, Vince N, Douillard V, Geffard E, Binns-Roemer E, Ng DK, Gourraud PA, Reidy K, Warady B, Furth S, Kopp JB, Kaskel FJ, Limou S. Identification of Novel Genetic Risk Factors for Focal Segmental Glomerulosclerosis in Children: Results From the Chronic Kidney Disease in Children (CKiD) Cohort. Am J Kidney Dis 2023; 81:635-646.e1. [PMID: 36623684 DOI: 10.1053/j.ajkd.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 11/02/2022] [Indexed: 01/09/2023]
Abstract
RATIONALE & OBJECTIVE Focal segmental glomerulosclerosis (FSGS) is a major cause of pediatric nephrotic syndrome, and African Americans exhibit an increased risk for developing FSGS compared with other populations. Predisposing genetic factors have previously been described in adults. Here we performed genomic screening of primary FSGS in a pediatric African American population. STUDY DESIGN Prospective cohort with case-control genetic association study design. SETTING & PARTICIPANTS 140 African American children with chronic kidney disease from the Chronic Kidney Disease in Children (CKiD) cohort, including 32 cases with FSGS. PREDICTORS Over 680,000 common single-nucleotide polymorphisms (SNPs) were tested for association. We also ran a pathway enrichment analysis and a human leucocyte antigen (HLA)-focused association study. OUTCOME Primary biopsy-proven pediatric FSGS. ANALYTICAL APPROACH Multivariate logistic regression models. RESULTS The genome-wide association study revealed 169 SNPs from 14 independent loci significantly associated with FSGS (false discovery rate [FDR]<5%). We observed notable signals for genetic variants within the APOL1 (P=8.6×10-7; OR, 25.8 [95% CI, 7.1-94.0]), ALMS1 (P=1.3×10-7; 13.0% in FSGS cases vs 0% in controls), and FGFR4 (P=4.3×10-6; OR, 24.8 [95% CI, 6.3-97.7]) genes, all of which had previously been associated with adult FSGS, kidney function, or chronic kidney disease. We also highlighted novel, functionally relevant genes, including GRB2 (which encodes a slit diaphragm protein promoting podocyte structure through actin polymerization) and ITGB1 (which is linked to renal injuries). Our results suggest a major role for immune responses and antigen presentation in pediatric FSGS through (1) associations with SNPs in PTPRJ (or CD148, P=3.5×10-7), which plays a role in T-cell receptor signaling, (2) HLA-DRB1∗11:01 association (P=6.1×10-3; OR, 4.5 [95% CI, 1.5-13.0]), and (3) signaling pathway enrichment (P=1.3×10-6). LIMITATIONS Sample size and no independent replication cohort with genomic data readily available. CONCLUSIONS Our genetic study has identified functionally relevant risk factors and the importance of immune regulation for pediatric primary FSGS, which contributes to a better description of its molecular pathophysiological mechanisms.
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Affiliation(s)
- Axelle Durand
- Center for Research in Transplantation and Translational Immunology (UMR 1064), Nantes Université, Ecole Centrale Nantes, CHU Nantes, INSERM, F-44000 Nantes, France
| | - Cheryl A Winkler
- Basic Research Laboratory, Center for Cancer Research, Frederick National Laboratory, National Cancer Institute, Frederick, Maryland
| | - Nicolas Vince
- Center for Research in Transplantation and Translational Immunology (UMR 1064), Nantes Université, Ecole Centrale Nantes, CHU Nantes, INSERM, F-44000 Nantes, France
| | - Venceslas Douillard
- Center for Research in Transplantation and Translational Immunology (UMR 1064), Nantes Université, Ecole Centrale Nantes, CHU Nantes, INSERM, F-44000 Nantes, France
| | - Estelle Geffard
- Center for Research in Transplantation and Translational Immunology (UMR 1064), Nantes Université, Ecole Centrale Nantes, CHU Nantes, INSERM, F-44000 Nantes, France
| | - Elizabeth Binns-Roemer
- Basic Research Laboratory, Center for Cancer Research, Frederick National Laboratory, National Cancer Institute, Frederick, Maryland
| | - Derek K Ng
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Pierre-Antoine Gourraud
- Center for Research in Transplantation and Translational Immunology (UMR 1064), Nantes Université, Ecole Centrale Nantes, CHU Nantes, INSERM, F-44000 Nantes, France
| | - Kimberley Reidy
- Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York
| | | | - Susan Furth
- Children's Hospital of Pennsylvania, Philadelphia, Pennsylvania
| | - Jeffrey B Kopp
- Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Frederick J Kaskel
- Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York
| | - Sophie Limou
- Center for Research in Transplantation and Translational Immunology (UMR 1064), Nantes Université, Ecole Centrale Nantes, CHU Nantes, INSERM, F-44000 Nantes, France.
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10
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Xiao T, Zhang M, Ji H. Synthesis and Biochemical Evaluation of Monocarboxylic GRB2 SH2 Domain Inhibitors. Methods Mol Biol 2023; 2705:269-290. [PMID: 37668980 DOI: 10.1007/978-1-0716-3393-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
This protocol discloses the synthesis of monocarboxylic inhibitors with a macrocyclic peptide scaffold to bind with the GRB2 SH2 domain and disrupt the protein-protein interactions (PPIs) between GRB2 and phosphotyrosine-containing proteins.
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Affiliation(s)
- Tao Xiao
- Drug Discovery Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
- Departments of Oncologic Sciences and Chemistry, University of South Florida, Tampa, FL, USA
| | - Min Zhang
- Drug Discovery Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
- Departments of Oncologic Sciences and Chemistry, University of South Florida, Tampa, FL, USA
| | - Haitao Ji
- Drug Discovery Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA.
- Departments of Oncologic Sciences and Chemistry, University of South Florida, Tampa, FL, USA.
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11
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Benamar M, Harb H, Chen Q, Wang M, Chan TMF, Fong J, Phipatanakul W, Cunningham A, Ertem D, Petty CR, Mousavi AJ, Sioutas C, Crestani E, Chatila TA. A common IL-4 receptor variant promotes asthma severity via a T reg cell GRB2-IL-6-Notch4 circuit. Allergy 2022; 77:3377-3387. [PMID: 35841382 PMCID: PMC9617759 DOI: 10.1111/all.15444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND The mechanisms by which genetic and environmental factors interact to promote asthma remain unclear. Both the IL-4 receptor alpha chain R576 (IL-4RαR576) variant and Notch4 license asthmatic lung inflammation by allergens and ambient pollutant particles by subverting lung regulatory T (Treg ) cells in an IL-6-dependent manner. OBJECTIVE We examined the interaction between IL-4RαR576 and Notch4 in promoting asthmatic inflammation. METHODS Peripheral blood mononuclear cells (PBMCs) of asthmatics were analyzed for T helper type 2 cytokine production and Notch4 expression on Treg cells as a function of IL4RR576 allele. The capacity of IL-4RαR576 to upregulate Notch4 expression on Treg cells to promote severe allergic airway inflammation was further analyzed in genetic mouse models. RESULTS Asthmatics carrying the IL4RR576 allele had increased Notch4 expression on their circulating Treg cells as a function of disease severity and serum IL-6. Mice harboring the Il4raR576 allele exhibited increased Notch4-dependent allergic airway inflammation that was inhibited upon Treg cell-specific Notch4 deletion or treatment with an anti-Notch4 antibody. Signaling via IL-4RαR576 upregulated the expression in lung Treg cells of Notch4 and its downstream mediators Yap1 and beta-catenin, leading to exacerbated lung inflammation. This upregulation was dependent on growth factor receptor-bound protein 2 (GRB2) and IL-6 receptor. CONCLUSION These results identify an IL-4RαR576-regulated GRB2-IL-6-Notch4 circuit that promotes asthma severity by subverting lung Treg cell function.
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Affiliation(s)
- Mehdi Benamar
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Hani Harb
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
- Institute for Medical Microbiology and Virology, Technical
University Dresden, Germany
| | - Qian Chen
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Muyun Wang
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Tsz Man Fion Chan
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Jason Fong
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Wanda Phipatanakul
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Amparito Cunningham
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Deniz Ertem
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Carter R. Petty
- Institutional Centers for Clinical and Translational
Research, Boston Children’s Hospital, Boston, Massachusetts
| | - Amirhosein J. Mousavi
- Department of Civil and Environmental Engineering,
University of Southern California, CA, USA
| | - Constantinos Sioutas
- Department of Civil and Environmental Engineering,
University of Southern California, CA, USA
| | - Elena Crestani
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
| | - Talal A. Chatila
- Division of Immunology, Boston Children’s Hospital,
Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston,
MA, USA
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12
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Yarahmadi G, Fazeli J, Dehghanian M, Mehrjardi MYV, Javaheri A, Kalantar SM. Evaluation of the relationship between miR-1271 and GRB2 gene in endometriosis. Eur J Obstet Gynecol Reprod Biol 2022; 277:12-5. [PMID: 35970002 DOI: 10.1016/j.ejogrb.2022.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Endometriosis is a common gynecological condition with a substantial economic burden on society. It is known that both genetic and environmental factors are contributing to the phenotypic development of the disease. MicroRNAs have a vital role in the pathogenesis of endometriosis. miR-1271 and its direct target gene, GRB2 (growth factor receptor-bound protein 2), expression have been studied in gynecologic cancers, while their role in endometriosis has not been studied. OBJECTIVE We measured miR-1271 and GRB2 gene expression in the eutopic and ectopic tissues of patients (endometrial tissues) in contrast to the control samples from healthy women. MATERIALS AND METHODS In this study, a total of 45 samples (15 control samples, 15 eutopic samples and 15 ectopic samples) were collected. We used qRT-PCR (quantitative polymerase chain reaction) to evaluate the expression levels of the miR-1271 and GRB2 gene. RESULTS We observed inverse expression of miR-1271 and GRB2 gene. MiR-1271 expression was significantly reduced in patients with endometriosis compared with healthy women. While there was a noticeable increase in the expression level of its target gene, GRB2, in tissues of endometriosis patients compared with normal control samples. CONCLUSION We have shown an inverse relationship between the reduction of miR-1271 expression level and increase in the expression level of GRB2, therefore, increased GRB2 expression in endometriosis tissues can be due to decreased expression of this microRNA. Our findings suggested that miR-1271 maybe play a role as a biomarker in the diagnosis of patients with endometriosis.
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13
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Wei W, Wang C, Zhang J, Wang L, Wei L, Huang H. The role of the LINC01234/miR-433-3p/ GRB2 ceRNA network in NSCLC cell malignant proliferation. Comb Chem High Throughput Screen 2022; 26:1836-1847. [PMID: 35747966 DOI: 10.2174/1386207325666220624093957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/14/2022] [Accepted: 04/20/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is associated with high morbidity and mortality. Dysregulation of lncRNAs leads to NSCLC progression. OBJECTIVE This study aims to explore the regulatory mechanism of lncRNA LINC01234 in NSCLC. MATERIALS AND METHODS LINC01234 expression in NSCLC cells was determined. Cell proliferation was detected using CCK-8, colony formation, and EDU assays after transfection of siRNA LINC01234 into H1299 cells and transfection of pcDNA3.1-LINC01234 into H1975 cells. Subcellular localization of LINC01234 was predicted and the binding relations between LINC01234 and miR-433-3p as well as miR-433-3p and GRB2 were verified. The expression levels of miR-433-3p and GRB2 in NSCLC cells were determined. Joint experiments of miR-433-3p inhibitor + si-LINC01234-1 or oe-GRB2 + si-LINC01234-1 were conducted to verify the role of miR-433-3p and GRB2 in NSCLC cell malignant proliferation. RESULTS LINC01234 was abundantly expressed in NSCLC cells. LINC01234 silencing reduced NSCLC cell proliferation while LINC01234 overexpression enhanced cell proliferation. LINC01234 competitively bound to miR-433-3p and miR-433-3p directly targeted GRB2. miR-433-3p knockdown or GRB2 overexpression counteracted the repressive effect of LINC01234 silencing on NSCLC cell malignant proliferation. CONCLUSION LINC01234 competitively bound to miR-433-3p and promoted GRB2 transcription to augment NSCLC cell malignant proliferation.
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Affiliation(s)
- Wei Wei
- Department of Cardiothoracic Surgery , Jinling Hospital, zhongshan road 305, China
| | - Changyong Wang
- Department of Cardiothoracic Surgery , Jinling Hospital, zhongshan road 305, China
| | - Jianfeng Zhang
- Department of Cardiothoracic Surgery , Jinling Hospital, zhongshan road 305, China
| | - Lele Wang
- Department of Cardiothoracic Surgery , Jinling Hospital, zhongshan road 305, China
| | - Lei Wei
- Department of Cardiothoracic Surgery , Jinling Hospital, zhongshan road 305, China
| | - Hairong Huang
- Department of Cardiothoracic Surgery , Jinling Hospital, zhongshan road 305, China
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14
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Bi Y, Liu J, Ma M, Tao L, Peng Y, Dai X, Ji Z, Bai R, Jian M, Chen T, Luo L, Wang F, Ding Z, Liu A, Bao F. Comparative proteomics profiling revealed the involvement of GRB2-ROCK2 axis in Lyme neuroborreliosis caused by Borrelia Burgdorferi. J Cell Mol Med 2022; 26:2312-2321. [PMID: 35212166 PMCID: PMC8995463 DOI: 10.1111/jcmm.17253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/23/2022] [Accepted: 02/11/2022] [Indexed: 11/28/2022] Open
Abstract
The zoonotic Lyme neuroborreliosis (LNB) disease is caused by Borrelia burgdorferi, with wide distribution, rapid dissemination and high disability rate. However, the molecular mechanism underlying B. burgdorferi mediated neuroborreliosis remains largely unknown. Here, the frontal cortex from rhesus brains was incubated with B. burgdorferi, and proteomics profiling was evaluated by isobaric tag for relative and absolute quantitation. Proteins were identified and quantified, and differentially expressed proteins (DEPs) were isolated by comparing co-cultured samples and control samples. A total of 43, 164 and 368 DEPs were significantly altered after 6, 12 and 24 h treatment with B. burgdorferi respectively. Gene ontology and KEGG pathway analyses revealed that chemokine biological process was significantly enriched. Two genes in chemokine pathway including GRB2 and ROCK2 were significantly up-regulated after B. burgdorferi co-culturing. By in vitro assay, we confirmed that the expression of GRB2 and ROCK2 was increased after B. burgdorferi infection. In conclusion, our study revealed the involvement of chemokine pathway in the pathogenesis of LNB. GRB2 and ROCK2 may be novel biomarkers and therapeutic targets for LNB.
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Affiliation(s)
- Yunfeng Bi
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China.,Department of Dermatology, the Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jianjun Liu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Biomedical Engineering Research Center, Kunming Medical University, Kunming, China
| | - Mingbiao Ma
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Lvyan Tao
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Yun Peng
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Xiting Dai
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Zhenhua Ji
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Ruolan Bai
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Miaomiao Jian
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Taigui Chen
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Lisha Luo
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Feng Wang
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Zhe Ding
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Aihua Liu
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
| | - Fukai Bao
- Yunnan Province Key Laboratory for Tropical Infectious Diseases in Universities, Kunming Medical University, Kunming, China
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15
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Kazemein Jasemi NS, Reza Ahmadian M. Allosteric regulation of GRB2 modulates RAS activation. Small GTPases 2022; 13:282-286. [PMID: 35703160 DOI: 10.1080/21541248.2022.2089001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
RAS activation is a multiple-step process in which linkage of the extracellular stimuli to the RAS activator SOS1 is the main step in RAS activation. GRB2 adaptor protein is the main modulator in SOS1 recruitment to the plasma membrane and its activation. This interaction is well studied but the exact mechanism of GRB2-SOS1 complex formation and SOS1 activation has yet remained obscure. Here, a new allosteric mechanism for the GRB2 regulation is described as a prerequisite for the modulation of SOS1 activation. This regulatory mechanism comprises a series of intramolecular interactions which are potentiated by GRB2 interaction with upstream ligands.Abbreviations: GRB2, growth factor receptor-bound protein 2; SOS1, son of sevenless 1; RAS, Rat Sarcoma; GEF, guanine nucleotide exchange factor; GAP, GTPase-activating protein; HER2, human epidermal growth factor receptor; SH3, SRC Homology 3; SH2, SRC Homology 2; PRD, proline-rich domain; PRM, proline-rich motif; PRP, proline-rich peptide; RTK, receptor tyrosine kinases.
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Affiliation(s)
- Neda S Kazemein Jasemi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Universitaetsstrasse 1, Building 22.03, 40255 Düsseldorf, Germany
| | - Mohammad Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Universitaetsstrasse 1, Building 22.03, 40255 Düsseldorf, Germany
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16
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Xiao T, Sun L, Zhang M, Li Z, Haura EB, Schonbrunn E, Ji H. Synthesis and structural characterization of a monocarboxylic inhibitor for GRB2 SH2 domain. Bioorg Med Chem Lett 2021; 51:128354. [PMID: 34506932 DOI: 10.1016/j.bmcl.2021.128354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/29/2021] [Accepted: 09/02/2021] [Indexed: 11/16/2022]
Abstract
A monocarboxylic inhibitor was designed and synthesized to disrupt the protein-protein interaction (PPI) between GRB2 and phosphotyrosine-containing proteins. Biochemical characterizations show compound 7 binds with the Src homology 2 (SH2) domain of GRB2 and is more potent than EGFR1068 phosphopeptide 14-mer. X-ray crystallographic studies demonstrate compound 7 occupies the GRB2 binding site for phosphotyrosine-containing sequences and reveal key structural features for GRB2-inhibitor binding. This compound with a -1 formal charge offers a new direction for structural optimization to generate cell-permeable inhibitors for this key protein target of the aberrant Ras-MAPK signaling cascade.
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Affiliation(s)
- Tao Xiao
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Luxin Sun
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Min Zhang
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Zilu Li
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States; Department of Chemistry, University of South Florida, Tampa, FL, United States
| | - Eric B Haura
- Department of Thoracic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
| | - Ernst Schonbrunn
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States.
| | - Haitao Ji
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States; Department of Chemistry, University of South Florida, Tampa, FL, United States.
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17
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Wang Q, Hong L, Chen M, Shi J, Lin X, Huang L, Tang T, Guo Y, Yuan X, Jiang S. Targeting M2 Macrophages Alleviates Airway Inflammation and Remodeling in Asthmatic Mice via miR-378a-3p/ GRB2 Pathway. Front Mol Biosci 2021; 8:717969. [PMID: 34589519 PMCID: PMC8473897 DOI: 10.3389/fmolb.2021.717969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/31/2021] [Indexed: 11/29/2022] Open
Abstract
Background: Asthma is a complex respiratory disease characterized by airway inflammation and remodeling. MicroRNAs (miRNAs) mediate various cellular processes including macrophage polarization and play an important role in the pathogenesis of asthma. In present study, we aimed to screen miRNA profiling involved in macrophage polarization and investigate its possible functions and mechanisms. Methods: An OVA-sensitized mouse model was established and 2-chloroadenosine (2-CA) was used to interfere with macrophages. The airway inflammation and remodeling were assessed. The identification and function of M2 alveolar macrophages were assessed by flow cytometry, RT-qPCR, arginase activity and co-culture experiment. Microarray screening was used to select miRNAs which were related to macrophage polarization and RNA interference (RNAi) technique was performed to confirm the function of the selected miRNA and its target gene. Results: Alveolar macrophages of asthmatic mice showed significant M2 polarization. 2-CA alleviated airway inflammation and remodeling as well as M2 polarization. In vitro, IL-4-induced M2 macrophages promoted the proliferation of α-SMA-positive cells. And miRNA profiling showed a remarkable increased expression of miR-378a-3p in IL-4 induced M2 macrophages. Dual luciferase reporter assay confirmed growth factor receptor binding protein 2 (GRB2) was a target gene of miR-378a-3p. A miR-378a-3p inhibitor and knockdown of GRB2 repolarized alveolar macrophages from M1 to M2 phenotype. Conclusion: Our findings suggest that miR-378a-3p/GRB2 pathway regulates the polarization of alveolar macrophages which acts as a potential therapeutic target for airway inflammation and remodeling in asthma.
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Affiliation(s)
- Qiujie Wang
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Luna Hong
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Ming Chen
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Jiangting Shi
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Xiaoling Lin
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Linjie Huang
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Tiantian Tang
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Yimin Guo
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
| | - Xiaoqing Yuan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shanping Jiang
- Division of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, China
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Kazemein Jasemi NS, Herrmann C, Magdalena Estirado E, Gremer L, Willbold D, Brunsveld L, Dvorsky R, Ahmadian MR. The intramolecular allostery of GRB2 governing its interaction with SOS1 is modulated by phosphotyrosine ligands. Biochem J 2021; 478:2793-809. [PMID: 34232285 DOI: 10.1042/BCJ20210105] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 07/01/2021] [Accepted: 07/07/2021] [Indexed: 02/04/2023]
Abstract
Growth factor receptor-bound protein 2 (GRB2) is a trivalent adaptor protein and a key element in signal transduction. It interacts via its flanking nSH3 and cSH3 domains with the proline-rich domain (PRD) of the RAS activator SOS1 and via its central SH2 domain with phosphorylated tyrosine residues of receptor tyrosine kinases (RTKs; e.g. HER2). The elucidation of structural organization and mechanistic insights into GRB2 interactions, however, remain challenging due to their inherent flexibility. This study represents an important advance in our mechanistic understanding of how GRB2 links RTKs to SOS1. Accordingly, it can be proposed that (1) HER2 pYP-bound SH2 potentiates GRB2 SH3 domain interactions with SOS1 (an allosteric mechanism); (2) the SH2 domain blocks cSH3, enabling nSH3 to bind SOS1 first before cSH3 follows (an avidity-based mechanism); and (3) the allosteric behavior of cSH3 to other domains appears to be unidirectional, although there is an allosteric effect between the SH2 and SH3 domains.
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19
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Wang J, Sun X, Wang X, Cui S, Liu R, Liu J, Fu B, Gong M, Wang C, Shi Y, Chen Q, Cai G, Chen X. Grb2 Induces Cardiorenal Syndrome Type 3: Roles of IL-6, Cardiomyocyte Bioenergetics, and Akt/mTOR Pathway. Front Cell Dev Biol 2021; 9:630412. [PMID: 33829014 PMCID: PMC8019825 DOI: 10.3389/fcell.2021.630412] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/22/2021] [Indexed: 12/26/2022] Open
Abstract
Cardiorenal syndrome type 3 (CRS-3) is damage to the heart following acute kidney injury (AKI). Although many experiments have found that inflammation, oxidative stress, and cardiomyocyte death are involved in cardiomyocyte pathophysiological alterations during CRS-3, they lack a non-bias analysis to figure out the primary mediator of cardiac dysfunction. Herein proteomic analysis was operated in CRS-3 and growth factor receptor-bound protein 2 (Grb2) was identified as a regulator involving AKI-related myocardial damage. Increased Grb2 was associated with cardiac diastolic dysfunction and mitochondrial bioenergetics impairment; these pathological changes could be reversed through the administration of a Grb2-specific inhibitor during AKI. Molecular investigation illustrated that augmented Grb2 promoted cardiomyocyte mitochondrial metabolism disorder through inhibiting the Akt/mTOR signaling pathway. Besides that, Mouse Inflammation Array Q1 further identified IL-6 as the upstream stimulator of Grb2 upregulation after AKI. Exogenous administration of IL-6 induced cardiomyocyte damage and mitochondrial bioenergetics impairment, whereas these effects were nullified in cardiomyocytes pretreated with Grb2 inhibitor. Our results altogether identify CRS-3 to be caused by the upregulations of IL-6/Grb2 which contribute to cardiac dysfunction through inhibiting the Akt/mTOR signaling pathway and inducing cardiomyocyte mitochondrial bioenergetics impairment. This finding provides a potential target for the clinical treatment of patients with CRS-3.
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Affiliation(s)
- Jin Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Xuefeng Sun
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Xu Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Shaoyuan Cui
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Ran Liu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Jiaona Liu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Bo Fu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Ming Gong
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Conghui Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Yushen Shi
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Qianqian Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Guangyan Cai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing, China
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20
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Zhang X, Zhang J, Gao F, Fan S, Dai L, Zhang J. KPNA2-Associated Immune Analyses Highlight the Dysregulation and Prognostic Effects of GRB2, NRAS, and Their RNA-Binding Proteins in Hepatocellular Carcinoma. Front Genet 2020; 11:593273. [PMID: 33193737 PMCID: PMC7649362 DOI: 10.3389/fgene.2020.593273] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/21/2020] [Indexed: 12/14/2022] Open
Abstract
Karyopherin α2 (KPNA2) was reported to be overexpressed and have unfavorable prognostic effects in many malignancies including hepatocellular carcinoma (HCC). Although its contributions to inflammatory response were reported in many studies, its specific associations with immune infiltrations and immune pathways during cancer progression were unclear. Here, we aimed to identify new markers for HCC diagnosis and prognosis through KPNA2-associated immune analyses. RNA-seq expression data of HCC datasets were downloaded from The Cancer Genome Atlas and International Cancer Genome Consortium. The gene expressions were counts per million normalized. The infiltrations of 24 kinds of immune cells in the samples were evaluated with ImmuCellAI (Immune Cell Abundance Identifier). The Spearman correlations of the immune infiltrations with KPNA2 expression were investigated, and the specific positive correlation of B-cell infiltration with KPNA2 expression in HCC tumors was identified. Fifteen genes in KEGG (Kyoto Encyclopedia of Genes and Genomes) B-cell receptor signaling pathway presented significant correlations with KPNA2 expression in HCC. Among them, GRB2 and NRAS were indicated to be independent unfavorable prognostic factors for HCC overall survival. Clinical Proteomic Tumor Analysis Consortium HCC dataset was investigated to validate the results at protein level. The upregulation and unfavorable prognostic effects of KPNA2 and GRB2 were confirmed, whereas, unlike its mRNA form, NRAS protein was presented to be downregulated and have favorable prognostic effects. Through receiver operating characteristic curve analysis, the diagnostic potential of the three proteins was shown. The RNA-binding proteins (RBPs) of KPNA2, NRAS, and GRB2, downloaded via The Encyclopedia of RNA Interactomes, were investigated for their clinical significance in HCC at protein level. An eight-RBP signature with independent prognostic value and dysregulations in HCC was identified. All the RBPs were significantly correlated with MKI67 expression and at least one of KPNA2, GRB2, and NRAS at protein level in HCC, indicating their roles in HCC progression and the regulation of the three proteins. We concluded that KPNA2, GRB2, NRAS, and their RBPs might have coordinating roles in HCC immunoregulation and progression. They might be new markers for HCC diagnosis and prognosis predication and new targets for HCC immunotherapy.
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Affiliation(s)
- Xiuzhi Zhang
- Department of Pathology, Henan Medical College, Zhengzhou, China
| | - Jialing Zhang
- Department of Pathology, Henan Medical College, Zhengzhou, China
| | - Fenglan Gao
- Department of Pathology, Henan Medical College, Zhengzhou, China
| | - Shasha Fan
- Oncology Department, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, China.,Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, China
| | - Liping Dai
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jinzhong Zhang
- Department of Pathology, Henan Medical College, Zhengzhou, China
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21
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Chen Y, Wu J, Yan H, Cheng Y, Wang Y, Yang Y, Deng M, Che X, Hou K, Qu X, Zou D, Liu Y, Zhang Y, Hu X. Lymecycline reverses acquired EGFR-TKI resistance in non-small-cell lung cancer by targeting GRB2. Pharmacol Res 2020; 159:105007. [PMID: 32561477 DOI: 10.1016/j.phrs.2020.105007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022]
Abstract
Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) were first-line treatments for NSCLC patients with EGFR-mutations. However, about 30 % of responders relapsed within six months because of acquired resistance. In this study, we used Connectivity Map (CMap) to discover a drug capable of reversing acquired EGFR-TKIs resistance. To investigate Lymecycline's ability to reverse acquired EGFR-TKIs resistance, two Icotinib resistant cell lines were constructed. Lymecycline's ability to suppress the proliferation of Icotinib resistant cells in vitro and in vivo was then evaluated. Molecular targets were predicted using network pharmacology and used to identify the molecular mechanism. Growth factor receptor-bound protein 2 (GRB2) is an EGFR-binding adaptor protein essential for EGFR phosphorylation and regulation of AKT/ERK/STAT3 signaling pathways. Lymecycline targeted GRB2 and inhibited the resistance of the cell cycle to EGFR-TKI, arresting disease progression and inducing apoptosis in cancer cells. Combined Lymecycline and Icotinib treatment produced a synergistic effect and induced apoptosis in HCC827R5 and PC9R10 cells. Cell proliferation in resistant cancer cells was significantly inhibited by the combined Lymecycline and Icotinib treatment in mouse models. Lymecycline inhibited the resistance of the cell cycle to EGFR-TKI and induced apoptosis in NSCLC by inhibiting EGFR phosphorylation and GRB2-mediated AKT/ERK/STAT3 signaling pathways. This provided strong support that Lymecycline when combined with EGFR targeting drugs, enhanced the efficacy of treatments for drug-resistant NSCLC.
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Affiliation(s)
- Yang Chen
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Jie Wu
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China; Department of Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Hongfei Yan
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China; Department of Oncology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Yang Cheng
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yizhe Wang
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yi Yang
- Laboratory Animal Center, China Medical University, Shenyang, 110001, Liaoning, China
| | - Mingming Deng
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Xiaofang Che
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Kezuo Hou
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
| | - Xiujuan Qu
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China; Department of Oncology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Dan Zou
- The First Laboratory of Cancer Institute, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City, 110001, China
| | - Yunpeng Liu
- Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China; Department of Oncology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Ye Zhang
- The First Laboratory of Cancer Institute, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City, 110001, China.
| | - Xuejun Hu
- Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, China.
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22
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Wang A, Wang J. E2F1-Induced Overexpression of Long Noncoding RNA SBF2-AS1 Promotes Non-Small-Cell Lung Cancer Metastasis Through Regulating miR-362-3p/ GRB2 Axis. DNA Cell Biol 2020; 39:1290-1298. [PMID: 32364763 DOI: 10.1089/dna.2020.5426] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Long noncoding RNA SBF2 antisense RNA 1 (lncRNA SBF2-AS1) has been reported to be involved in non-small-cell lung cancer (NSCLC) tumorigenesis. However, the biological role and regulatory mechanism of lncRNA SBF2-AS1 on NSCLC metastasis remain largely unknown. In this study, the expression level and functional role of SBF2-AS1 were investigated in both NSCLC tissues and cell lines. We found that SBF2-AS1 was upregulated in both NSCLC tissues and cell lines. Patients with high levels of SBF2-AS1 have larger tumors, higher malignancy, and poor prognosis. Knockdown of SBF2-AS1 significantly inhibited tumor growth in vivo and cell proliferation, migration, and invasion in vitro. Moreover, bioinformatics analysis, chromatin immunoprecipitation assay, and luciferase reporter assay proved that the upregulation of SBF2-AS1 was mediated by transcription factor E2F1. Further experiments demonstrated that miR-362-3p had complementary binding site with 3'-UTR of SBF2-AS1. Besides, luciferase reporter assay validated that GRB2 was the target protein of miR-362-3p. Rescue experiments showed that SBF2-AS1 silencing inhibited cell invasion and migration, while cotransfection si-SBF2-AS1 and miR-362-3p inhibitor rescued the effect of si-SBF2-AS1. These results demonstrate that E2F1-induced overexpression of SBF2-AS1 promotes the expression of GRB2 by targeting miR-362-3p to facilitate the metastasis of NSCLC.
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Affiliation(s)
- Aijun Wang
- Department of Clinical Laboratory, Yuncheng County Hospital of Traditional Chinese Medicine, Yuncheng County, People's Republic of China
| | - Jian Wang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
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23
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Yang Y, Ren G, Wang Z, Wang B. Human cytomegalovirus IE2 protein regulates macrophage-mediated immune escape by upregulating GRB2 expression in UL122 genetically modified mice. Biosci Trends 2020; 13:502-509. [PMID: 31866613 DOI: 10.5582/bst.2019.01197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Although cytomegalovirus (HCMV) infection is asymptomatic in healthy individuals, the virus can remain latent for many years due to its ability to evade host immune surveillance. However, reactivation of HCMV can lead to life-threatening disease. Recent studies have shown that HCMV infection mediates immune escape by regulating macrophage activity, although the role of the HCMV-encoded IE2 protein is unclear. A ul122 transgenic mouse model was created to stably expresses the IE2 protein, and the proportion of M1 and M2 macrophage populations in their spleen and bone marrow was compared to that in wild-type controls. In addition, the phagocytic function of the macrophages was evaluated in terms of neutral red dye uptake. Spleen and bone marrow macrophages in IE2-expressing mice were mainly of the M2 phenotype and displayed enhanced phagocytic function compared to that in control mice. The relative levels of expression of macrophage-related GRB2 and of IL-4, IFN-γ, IL-13, and TNF-α were also analyzed in the spleen and bone marrow of the two groups. The IE2-expressing mice had increased expression of GRB2 and increased expression of the M2-related cytokines IL-4 and IL-13. Taken together, the current results suggest that HCMV IE2 polarizes the host macrophages to the M2 type via a GRB2/IL-4-related pathway, which enables long-term survival of the virus in the host.
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Affiliation(s)
- Yanan Yang
- Department of Special Medicine, Qingdao University College of Medicine, Qingdao, China
| | - Guohua Ren
- Dermatology, Heze Municipal Hospital, Heze, China
| | - Zhifei Wang
- Department of Pathogen Biology, Qingdao University College of Medicine, Qingdao, China
| | - Bin Wang
- Department of Special Medicine, Qingdao University College of Medicine, Qingdao, China
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Chen X, Liu Y, Yang Z, Zhang J, Chen S, Cheng J. LINC01234 promotes multiple myeloma progression by regulating miR-124-3p/ GRB2 axis. Am J Transl Res 2019; 11:6600-6618. [PMID: 31737211 PMCID: PMC6834521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
LncRNA is gradually considered as a vital regulator in various physiological and pathological processes. Recently, the role of LINC01234 in several cancers has been reported. However, the function and underlying regulatory mechanism of LINC01234 in multiple myeloma (MM) remain unclear. Our results indicated that LINC01234 was over-expressed in tumor tissues of MM patients, and LINC01234 down-regulation remarkably inhibited cell proliferation, cycle progression and promoted cell apoptosis in MM cells. Mechanistic studies revealed that LINC01234 could sponge miR-124-3p and decreased its expression, thereby up-regulated the protein level of miR-124-3p's targets growth factor receptor-bound protein 2 (GRB2). Additionally, in vivo experiments revealed that LINC01234 shRNA could serve as a tumor suppressor through down-regulating GRB2 in MM. In this study, a novel established regulatory manner of LINC01234/miR-124-3p/GRB2 axis was systematically studied, which may hold promise as a promising target for MM treatment.
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Affiliation(s)
- Xueyan Chen
- Department of Clinical Laboratory, The People’s Hospital of LonghuaShenzhen 518109, Guangdong Province, China
| | - Yin Liu
- Department of Laboratory Medicine, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong Province, China
| | - Zihua Yang
- Department of Clinical Laboratory, Shenzhen People’s Hospital, 2nd Clinical Medical College of Jinan UniversityShenzhen 518020, Guangdong Province, China
| | - Jiang Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong Province, China
| | - Shaoqian Chen
- Department of Laboratory Medicine, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong Province, China
| | - Jing Cheng
- Department of Laboratory Medicine, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong Province, China
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25
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Testini C, Smith RO, Jin Y, Martinsson P, Sun Y, Hedlund M, Sáinz-Jaspeado M, Shibuya M, Hellström M, Claesson-Welsh L. Myc-dependent endothelial proliferation is controlled by phosphotyrosine 1212 in VEGF receptor-2. EMBO Rep 2019; 20:e47845. [PMID: 31545012 PMCID: PMC6832004 DOI: 10.15252/embr.201947845] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 08/18/2019] [Accepted: 08/26/2019] [Indexed: 01/05/2023] Open
Abstract
Exaggerated signaling by vascular endothelial growth factor (VEGF)‐A and its receptor, VEGFR2, in pathologies results in poor vessel function. Still, pharmacological suppression of VEGFA/VEGFR2 may aggravate disease. Delineating VEGFR2 signaling in vivo provides strategies for suppression of specific VEGFR2‐induced pathways. Three VEGFR2 tyrosine residues (Y949, Y1212, and Y1173) induce downstream signaling. Here, we show that knock‐in of phenylalanine to create VEGFR2 Y1212F in C57Bl/6 and FVB mouse strains leads to loss of growth factor receptor‐bound protein 2‐ and phosphoinositide 3′‐kinase (PI3K)p85 signaling. C57Bl/6 Vegfr2Y1212F/Y1212F show reduced embryonic endothelial cell (EC) proliferation and partial lethality. FVB Vegfr2Y1212F/Y1212F show reduced postnatal EC proliferation. Reduced EC proliferation in Vegfr2Y1212F/Y1212F explants is rescued by c‐Myc overexpression. We conclude that VEGFR2 Y1212 signaling induces activation of extracellular‐signal‐regulated kinase (ERK)1/2 and Akt pathways required for c‐Myc‐dependent gene regulation, endothelial proliferation, and vessel stability.
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Affiliation(s)
- Chiara Testini
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ross O Smith
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Yi Jin
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Pernilla Martinsson
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ying Sun
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Marie Hedlund
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Miguel Sáinz-Jaspeado
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Masabumi Shibuya
- Institute of Physiology and Medicine, Jobu University, Takasaki, Gunma, Japan
| | - Mats Hellström
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Lena Claesson-Welsh
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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26
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Xu J, Zhang Y, Shi Y, Yin D, Dai P, Zhao W, Zhang T. Identification of Predictive Proteins and Biological Pathways for the Tumorigenicity of Vestibular Schwannoma by Proteomic Profiling. Proteomics Clin Appl 2019; 13:e1800175. [PMID: 31120176 DOI: 10.1002/prca.201800175] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 04/17/2019] [Indexed: 12/30/2022]
Abstract
PURPOSE Vestibular schwannomas (VSs) are benign tumors that account for 8-10% of all intracranial tumors. So far, the tumorigenesis of VS has not been fully elucidated. This study is designed to identify differently expressed proteins involved in VS tumorigenesis. EXPERIMENTAL DESIGN An isobaric tag is used for relative and absolute quantification (iTRAQ) approach to characterize the protein expression profiles from pooled VS tissues (n = 12) and pooled matched normal vestibular tissues (n = 12). RESULTS A total of 933 differentially expressed proteins are identified between VS and the matched normal vestibular tissues, with 489 being upregulated and 444 being downregulated. Bioinformatics analyses are performed according to Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses. Several of the differentially expressed proteins are validated by western blotting analyses, and upregulation of LGALS1, ANXA1, GRB2, and STAT1 is validated in VS tissue by immunohistochemistry. CONCLUSIONS AND CLINICAL RELEVANCE The study represents the successful application of iTRAQ technology to an investigation of VS. Many of the differentially expressed proteins identified here have not been linked to VS before, and these dysregulated proteins may provide potential biomarkers for human VS diagnosis.
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Affiliation(s)
- Jianhui Xu
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Key Laboratory of Hearing Medicine of NHFPC, Shanghai, 200031, China
| | - Yang Zhang
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Key Laboratory of Hearing Medicine of NHFPC, Shanghai, 200031, China
| | - Yuxuan Shi
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Key Laboratory of Hearing Medicine of NHFPC, Shanghai, 200031, China
| | - Dongming Yin
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Key Laboratory of Hearing Medicine of NHFPC, Shanghai, 200031, China
| | - Peidong Dai
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Key Laboratory of Hearing Medicine of NHFPC, Shanghai, 200031, China
| | - Weidong Zhao
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Department of Otology and Skull Base Surgery, Eye and Ear Nose Throat Hospital of Fudan University, Shanghai, 200031, China
| | - Tianyu Zhang
- ENT Institute and Otorhinolaryngology Department , Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China.,Key Laboratory of Hearing Medicine of NHFPC, Shanghai, 200031, China
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27
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Yang J, Guo X, Zhu L, Huang J, Long J, Chen Q, Pan R, Chen Z, Wu X, Su L. Rs7219 Regulates the Expression of GRB2 by Affecting miR-1288-Mediated Inhibition and Contributes to the Risk of Schizophrenia in the Chinese Han Population. Cell Mol Neurobiol 2019; 39:137-47. [PMID: 30474799 DOI: 10.1007/s10571-018-0639-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/16/2018] [Indexed: 01/04/2023]
Abstract
In the present study, we examined a potential genetic association between the variant rs7219 within the 3'-UTR of GRB2 and the susceptibility to schizophrenia (SCZ) and bipolar disorder (BD) in the Chinese Han population. A genetic association study, including 548 SCZ patients, 512 BD patients, and 598 normal controls, was conducted in the Chinese Han population. Genotyping was performed through the Sequenom MassARRAY technology platform. The expression of GRB2 was detected using quantitative real-time polymerase chain reaction (qRT-PCR). A dual-luciferase reporter assay was performed to determine whether miR-1288 could bind to the 3'-UTR region of GRB2 containing rs7219. We found that rs7219 was significantly associated with the susceptibility to SCZ under different genetic models, including additive [OR (95% CI) = 1.24 (1.02-1.49), P = 0.027], dominant [OR (95% CI) = 1.31 (1.04-1.66), P = 0.025], and allelic models[OR (95% CI) = 1.24 (1.03-1.49), P = 0.027]. However, no significant associations were found between rs7219 and the risk for BD (all P > 0.05). Moreover, we observed that the expression of GRB2 significantly decreased in SCZ patients compared with the controls (P = 0.004). The dual-luciferase reporter assay showed that the minor allele C of rs7219 significantly decreased the luciferase activity by binding miR-1288 (P < 0.001). In summary, we are the first to reveal that rs7219 is significantly associated with the susceptibility to SCZ in the Chinese Han population. Moreover, the minor allele C of rs7219 is identified as a risk allele for SCZ because it generates a binding site for miR-1288, thereby resulting in decreased expression of GRB2 and ultimately increasing the risk of SCZ.
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28
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Shi Q, Wang Y, Mu Y, Wang X, Fan Q. MiR-433-3p Inhibits Proliferation and Invasion of Esophageal Squamous Cell Carcinoma by Targeting GRB2. Cell Physiol Biochem 2018; 46:2187-2196. [PMID: 29730656 DOI: 10.1159/000489548] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 03/13/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS MicroRNAs (miRNAs) are non-coding single stranded RNAs of 17-25 nucleotides in size, and their altered expression has been observed in various cancers. Previous studies have confirmed that miR-433-3p has effects on cancer cell proliferation, invasion, and migration, and its expression also correlates with sensitivity to chemotherapy. However, to date, there have been no studies on the biological functions of miR-433-3p in esophageal squamous cell carcinoma (ESCC). METHODS The Cell Counting Kit-8, transwell, and matrigel assays were used to test the effects of miR-433-3p and its predicted target, growth factor receptor-bound protein 2 (GRB2), on the proliferation, migration, and invasion of Eca109 and KYSE30 cells, two types of esophageal cancer cell lines. The miR-433-3p binding site in the 3' untranslated region (UTR) region of GRB2 was predicted and verified using miRNA target site prediction software and structuring correct mutant examination. Western blotting and fluorescent quantitative PCR (FQ-PCR) techniques were employed to evaluate GRB2 expression. The inhibitory effects of miR-433-3p on tumor growth were investigated using a tumor xenograft model. RESULTS The binding site of miR-433-3p was identified in the 3'UTR region of GRB2. Western blotting and FQ-PCR showed that miR-433-3p inhibited the mRNA and protein expression of GRB2. Overexpression of GRB2 inhibited tumorigenesis in nude mice. MiR-433-3p overexpression inhibited the proliferation, migration, and invasion of ESCC cells by suppressing GRB2 gene expression. CONCLUSIONS Our findings suggest that targeting miR-433-3p may have therapeutic benefits in ESCC.
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Affiliation(s)
- Qizhong Shi
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of cardiothoracic Surgery, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Yongling Wang
- Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - Yonghui Mu
- Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - Xin Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qingxia Fan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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29
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Abstract
Colorectal cancer (CRC) is a progressive disorder associated with an accumulation of multiple heterogeneous genetic alterations in intestinal epithelial cells (IEC). However, when these cells undergo neoplastic transformation and become cancerous and metastatic, they invariably acquire hallmarks conferring them the ability to hyperproliferate, escape growth-inhibitory and death-inducing cues, and promote angiogenesis as well as epithelial-to-mesenchymal transformation (EMT), fostering their invasive dissemination from primary tumor into distant tissues. Compelling clinical and experimental evidence suggest that aberrant engagement of cell surface growth factor receptor tyrosine kinase (RTK) signaling, like that of the hepatocyte growth factor (HGF)/MET receptor, underlies CRC metastatic progression by promoting these cancer hallmarks. To date, though, the use of RTK-targeting agents has been viewed as a promising approach for the treatment of metastatic CRC, clinical success has been modest.Our vision is that the prospect of designing RTK-based, improved and innovative CRC therapies and prognostic markers likely rests on a comprehensive understanding of the biological processes and underlying regulatory molecular mechanisms by which deregulation of RTK signaling governs IEC's neoplastic transformation and their transition from noninvasive to metastatic and malignant cells. Herein, we describe our scheme for defining the full scope of oncogenic MET-driven cancer biological processes, in cellulo and in vivo, as well as the individual contribution of MET-binding effectors in a nontransformed IEC model, the IEC-6 cell line.
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Affiliation(s)
- Stephen McManus
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Walid Chababi
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Dominique Arsenault
- Department of Pediatrics, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada
- Department of Immunology Division, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Claire M Dubois
- Department of Pediatrics, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada
- Department of Immunology Division, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Caroline Saucier
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Science, Université de Sherbrooke, Sherbrooke, QC, Canada.
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30
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Wang X, Lu X, Zhang T, Wen C, Shi M, Tang X, Chen H, Peng C, Li H, Fang Y, Deng X, Shen B. mir-329 restricts tumor growth by targeting grb2 in pancreatic cancer. Oncotarget 2017; 7:21441-53. [PMID: 26885689 PMCID: PMC5008297 DOI: 10.18632/oncotarget.7375] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 02/05/2016] [Indexed: 12/30/2022] Open
Abstract
Pancreatic cancer is one of the most lethal malignancies worldwide. To illustrate the pathogenic mechanism(s), we looked into the expression and function of miR-329 associated with pancreatic cancer development. It was found that miR-329 expression was downregulated in the pancreatic cancer patients who demonstrated significantly shorter overall survival than the patients having upregulated expression. Also, more advanced pT stage cases were observed in the low miR-329 expression group of patients. Interestingly, our studies uncovered that miR-329 overexpression inhibited proliferation and induced apoptosis of pancreatic cancer cells, in contrast the miR-329 inhibitor reversed this phenomenon dramatically. Additionally, overexpression of miR-329 significantly limited tumor growth in the xenograft model. In the mechanistic study, we identified GRB2 as a direct target of miR-329 in pancreatic cancer cells, and expression of GRB2 was inversely correlated with miR-329 expression in pancreatic cancer patients. Furthermore, GRB2 overexpression in cell line and xenograft model dramatically diminished miR-329 mediated anti-proliferation and apoptosis induction, indicating that GRB2/pERK pathway was mainly downregulated by miR-329 expression. In general, our study has shed light on miR-329 regulated mechanism and, miR-329/GRB2/pERK is potential to be targeted for pancreatic cancer management.
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Affiliation(s)
- Xinjing Wang
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiongxiong Lu
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tian Zhang
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chenlei Wen
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Minmin Shi
- Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaomei Tang
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Chen
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chenghong Peng
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hongwei Li
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuan Fang
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaxing Deng
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Baiyong Shen
- Research Institute of Pancreatic Disease, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Pancreatic Disease Centre, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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31
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Caron E, Roncagalli R, Hase T, Wolski WE, Choi M, Menoita MG, Durand S, García-Blesa A, Fierro-Monti I, Sajic T, Heusel M, Weiss T, Malissen M, Schlapbach R, Collins BC, Ghosh S, Kitano H, Aebersold R, Malissen B, Gstaiger M. Precise Temporal Profiling of Signaling Complexes in Primary Cells Using SWATH Mass Spectrometry. Cell Rep 2017; 18:3219-3226. [PMID: 28355572 PMCID: PMC5382234 DOI: 10.1016/j.celrep.2017.03.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 02/28/2017] [Accepted: 03/03/2017] [Indexed: 11/02/2022] Open
Abstract
Spatiotemporal organization of protein interactions in cell signaling is a fundamental process that drives cellular functions. Given differential protein expression across tissues and developmental stages, the architecture and dynamics of signaling interaction proteomes is, likely, highly context dependent. However, current interaction information has been almost exclusively obtained from transformed cells. In this study, we applied an advanced and robust workflow combining mouse genetics and affinity purification (AP)-SWATH mass spectrometry to profile the dynamics of 53 high-confidence protein interactions in primary T cells, using the scaffold protein GRB2 as a model. The workflow also provided a sufficient level of robustness to pinpoint differential interaction dynamics between two similar, but functionally distinct, primary T cell populations. Altogether, we demonstrated that precise and reproducible quantitative measurements of protein interaction dynamics can be achieved in primary cells isolated from mammalian tissues, allowing resolution of the tissue-specific context of cell-signaling events.
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Affiliation(s)
- Etienne Caron
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Romain Roncagalli
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Takeshi Hase
- The Systems Biology Institute, Tokyo 108-0071, Japan
| | - Witold E Wolski
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, 8057 Zurich, Switzerland
| | - Meena Choi
- College of Science, College of Computer and Information Science, Northeastern University, Boston, MA 02115, USA
| | - Marisa G Menoita
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Stephane Durand
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Antonio García-Blesa
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Ivo Fierro-Monti
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Tatjana Sajic
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Moritz Heusel
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Tobias Weiss
- Department of Neurology and Brain Tumor Center, University Hospital Zurich and University of Zurich, 8091 Zurich, Switzerland
| | - Marie Malissen
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Ralph Schlapbach
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, 8057 Zurich, Switzerland
| | - Ben C Collins
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Samik Ghosh
- The Systems Biology Institute, Tokyo 108-0071, Japan
| | - Hiroaki Kitano
- The Systems Biology Institute, Tokyo 108-0071, Japan; Okinawa Institute of Science and Technology Garuda School, 904-0495 Okinawa, Japan
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland; Faculty of Science, University of Zurich, 8006 Zurich, Switzerland
| | - Bernard Malissen
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France; Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France.
| | - Matthias Gstaiger
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland.
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32
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Liang C, Xu Y, Ge H, Xing B, Li G, Li G, Wu J. miR-564 inhibits hepatocellular carcinoma cell proliferation and invasion by targeting the GRB2-ERK1/2-AKT axis. Oncotarget 2017; 8:107543-107557. [PMID: 29296185 PMCID: PMC5746087 DOI: 10.18632/oncotarget.22504] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 10/28/2017] [Indexed: 12/28/2022] Open
Abstract
Recent studies have shown that miR-564 is closely related to the development of various tumors, including breast cancer, lung cancer and glioma. However, few studies have examined miR-564 in hepatocellular carcinoma (HCC). Here, we demonstrated that miR-564 expression in HCC tissues was lower than that in adjacent noncancerous tissues and that miR-564 expression was associated with tumor size, tumor number and vein invasion. Bioinformatics analyses showed that low levels of miR-564 were correlated with poor prognosis. Furthermore, upregulation of miR-564 impaired SMCC7721 and MHCC97H cell proliferation, migration and invasion in vitro and reduced tumorigenesis in vivo. Next, we found that GRB2 was a direct target gene of miR-564 in the HCC cell lines. GRB2 was highly expressed in HCC tissues and negatively correlated with miR-564 expression levels. When GRB2 was downregulated by GRB2-siRNA, HCC cell proliferation, invasion and metastasis were impaired, and restoring GRB2 expression partially reversed the inhibitory effects of miR-564. Western blot analysis showed that miR-564 overexpression reduced GRB2 expression in HCC cell lines and inhibited ERK1/2 and AKT phosphorylation. miR-564 overexpression also upregulated the epithelial-like cell marker E-cadherin and downregulated the interstitial cell-like markers N-cadherin and vimentin. These results suggest that miR-564 inhibits the malignant phenotype of HCC cells by targeting the GRB2-ERK1/2-AKT axis. Consequently, miR-564 may be used as a prognostic marker and therapeutic target for HCC.
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Affiliation(s)
- Chaojie Liang
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Yingchen Xu
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Hua Ge
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Bingchen Xing
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Guanqun Li
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Guangming Li
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Jixiang Wu
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
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33
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Ge S, Xiong Y, Wu X, Xie J, Liu F, He J, Xiang T, Cheng N, Lai L, Zhong Y. Role of growth factor receptor-bound 2 in CCl 4-induced hepatic fibrosis. Biomed Pharmacother 2017; 92:942-951. [PMID: 28618656 DOI: 10.1016/j.biopha.2017.05.142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/19/2017] [Accepted: 05/28/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Growth Factor Receptor-bound 2 (GRB2) plays a crucial role in regulation of cellular function including proliferation and differentiation, and we previously identified GRB2 as promoting HSCs (HSCs) proliferation. However, the underlying mechanisms that are involving in the regulation of GRB2 in hepatic fibrogenesis remain unknown. METHODS In the present study, we tested the function of GRB2 in hepatic fibrosis. Hepatic fibrosis was induced by subcutaneous CCl4 administration at a dose of 3mL/kg in rats. The rat HSC cell line HSC-T6 were cultured for proliferation investigation by CCK-8 and BrdU incorporation method. The levels of GRB2, HMGB1, PI3K/AKT, COL1A1 and α-SMA were analyzed by western blot or real-time PCR. RESULTS showed that the expression of GRB2 and HMGB1 was obviously increased in liver tissues of hepatic fibrosis rats accompanied by up-regulation of COL1A1 and α-SMA. In cultured HSCs, application of exogenous HMGB1 induced cell proliferation and cell proliferation rate concomitantly with up-regulation of GRB2 expression and PI3K/AKT phosphorylation. The effects of HMGB1-induced proliferation of HSCs and up-regulation of COL1A1 and α-SMA were abolished by GRB2 siRNA. HMGB1-induced proliferation of HSCs and up-regulation of COL1A1 and α-SMA was reversed in the presence of LY294002, an inhibitor of PI3K inhibitor. CONCLUSIONS These findings suggest that GRB2 plays an important role in CCl4-induced hepatic fibrosis by regulating HSCs' function, and up-regulation of GRB2 induced by HMGB1 is mediated via the PI3K/AKT pathway.
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Affiliation(s)
- Shanfei Ge
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Ying Xiong
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Xiaoping Wu
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Jianping Xie
- Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Fei Liu
- Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jinni He
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China.
| | - Tianxing Xiang
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Na Cheng
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Lingling Lai
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Yuanbin Zhong
- Department of Infectious Disease, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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Manu MS, Rachana KS, Advirao GM. Altered expression of IRS2 and GRB2 in demyelination of peripheral neurons: Implications in diabetic neuropathy. Neuropeptides 2017; 62:71-79. [PMID: 28065675 DOI: 10.1016/j.npep.2016.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/28/2016] [Accepted: 12/12/2016] [Indexed: 10/20/2022]
Abstract
Demyelination of the peripheral nerves and dysfunction of Schwann cells (SCs) are the chronic complications involved in the development of peripheral neuropathy among diabetic patients. Insulin signaling plays an important role in restoring the myelin proteins in diabetic peripheral neuropathy (DPN). Since insulin levels are altered in diabetes, it becomes of great interest to appreciate the role and regulation of docking and adaptor protein, how these proteins respond to variations in the levels of insulin as experienced in juvenile diabetes. Tyrosine phosphorylation of receptor protein kinases provides a docking site for the activation of adaptor proteins which are the key regulators of insulin signaling pathway. In this report, we studied the long term effect of insulin as a neurotrophic factor and identified the isoform of receptor substrate involved in the propagation of insulin signal in SCs. We also studied the ability of insulin to regulate the expression of different receptor substrates like insulin receptor substrate-1 (IRS1), insulin receptor substrate-2 (IRS2) and growth factor receptor-bound protein-2 (GRB2) that propagate the insulin signaling and also their variation in hyperglycemic SCs and sciatic nerve of the diabetic rats. Results confirmed that IRS2 is the key receptor substrate involved in insulin signal transduction. But, a radical increase in the phosphorylation of IRS2 at serine 731 prevents the recruitment of GRB2 adaptor protein which may fail further to connect the Ras and other pathways required to the cell for its survival and to maintain integrity. These findings prove that SCs and sciatic nerve express IRS proteins that are altered by diabetes and thereby insulin signaling downstream is impaired and that contribute to the pathogenesis of DPN.
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Affiliation(s)
- Mallahalli S Manu
- Department of Biochemistry, Davangere University, Davangere, Karnataka, India
| | | | - Gopal M Advirao
- Department of Biochemistry, Davangere University, Davangere, Karnataka, India.
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35
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Majumder P, Roy K, Singh BK, Jana NR, Mukhopadhyay D. Cellular levels of Grb2 and cytoskeleton stability are correlated in a neurodegenerative scenario. Dis Model Mech 2017; 10:655-669. [PMID: 28360125 PMCID: PMC5451165 DOI: 10.1242/dmm.027748] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 03/28/2017] [Indexed: 12/29/2022] Open
Abstract
Alzheimer's disease (AD) manifests as neuronal loss. On the premise of Grb2 overexpression in AD mouse brain and brain tissues of AD patients, our study primarily focuses on the stability of cytoskeletal proteins in the context of degenerative AD-like conditions. Two predominant molecular features of AD, extracellular accumulation of β-amyloid oligomers and intracellular elevation of amyloid precursor protein intracellular domain levels, have been used to closely inspect the series of signalling events. In their presence, multiple signalling pathways involving ROCK and PAK1 proteins lead to disassembly of the cytoskeleton, and Grb2 partially counterbalances the cytoskeletal loss. Increased Grb2-NOX4 interactions play a preventive role against cytoskeletal disassembly, in turn blocking the activity of nitrogen oxides and decreasing the expression of slingshot homolog 1 (SSH-1) protein, a potent inducer of cytoskeleton disassembly. This study unravels a unique role of Grb2 in protecting the cytoskeletal architecture in AD-like conditions and presents a potential new strategy for controlling neurodegeneration.
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Affiliation(s)
- Piyali Majumder
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Block-AF, Sector-1, Bidhannagar, Kolkata, West Bengal 700064, India
| | - Kasturi Roy
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Block-AF, Sector-1, Bidhannagar, Kolkata, West Bengal 700064, India
| | - Brijesh Kumar Singh
- Cellular and Molecular Neuroscience Laboratory, National Brain Research Centre, Manesar, Gurgaon 122 050, India
| | - Nihar Ranjan Jana
- Cellular and Molecular Neuroscience Laboratory, National Brain Research Centre, Manesar, Gurgaon 122 050, India
| | - Debashis Mukhopadhyay
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Block-AF, Sector-1, Bidhannagar, Kolkata, West Bengal 700064, India
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Wang TT, Tian C, Sun J, Wang H, Zhang BY, Chen C, Wang J, Xiao K, Chen LN, Lv Y, Gao C, Shi Q, Xin Y, Dong XP. Down-regulation of brain-derived neurotrophic factor and its signaling components in the brain tissues of scrapie experimental animals. Int J Biochem Cell Biol 2016; 79:318-326. [PMID: 27590859 DOI: 10.1016/j.biocel.2016.08.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 08/11/2016] [Accepted: 08/29/2016] [Indexed: 12/30/2022]
Abstract
Prion is a unique nucleic acid-free pathogen that causes human and animal fatal neurodegenerative diseases. Brain-derived neurotrophic factor (BDNF) is a prototypic neurotrophin that helps to support the survival of existing neurons, and encourage the growth and differentiation of new neurons and synapses through axonal and dendritic sprouting. There are two distinct classes of glycosylated receptors, neurotrophin receptor p75 (p75NTR) and tropomyosin-related kinase (Trk), that can bind to BDNF. To obtain insights into the possible alterations of brain BDNF and its signaling pathway in prion disease, the levels of BDNF and several molecules in the BDNF pathway in the brain tissues of scrapie agents 263K-infected hamsters were separately evaluated. Western blots and/or immunohistochemical (IHC) assays revealed that BDNF, TrkB, GRB2 and p75NTR, were significantly downregulated in the brain tissues of scrapie-infected rodents at terminal stage. Double-stained immunofluorescent assay (IFA) demonstrated that BDNF and phospho-TrkB predominately expressed in neurons. Dynamic analyses of the brain samples collected at the different time-points during the incubation period illustrated continuous decreases of BDNF, TrkB, phospho-TrkB, GRB2 and p75NTR, which correlated well with neuron loss. However, these proteins remained almost unchanged in the prion infected cell line SMB-S15 compared with those of its normal cell line SMB-PS. These data suggest that the BDNF signaling pathway is severely hindered in the brains of prion disease, which may contribute, at least partially, to the neuron death.
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Affiliation(s)
- Ting-Ting Wang
- School of Basic Medical Sciences, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot 010110, People's Republic of China; State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Chan Tian
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China; Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, People's Republic of China
| | - Jing Sun
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Hui Wang
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Bao-Yun Zhang
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Cao Chen
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Jing Wang
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Kang Xiao
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Li-Na Chen
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Yan Lv
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Chen Gao
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Qi Shi
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China
| | - Yan Xin
- School of Basic Medical Sciences, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot 010110, People's Republic of China.
| | - Xiao-Ping Dong
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd, Beijing 102206, People's Republic of China; Chinese Academy of Sciences Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.
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Toki MI, Carvajal-Hausdorf DE, Altan M, McLaughlin J, Henick B, Schalper KA, Syrigos KN, Rimm DL. EGFR- GRB2 Protein Colocalization Is a Prognostic Factor Unrelated to Overall EGFR Expression or EGFR Mutation in Lung Adenocarcinoma. J Thorac Oncol 2016; 11:1901-1911. [PMID: 27449805 DOI: 10.1016/j.jtho.2016.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 06/16/2016] [Accepted: 06/27/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION EGFR is a therapeutic target in NSCLC for EGFR-mutant patients. Proximity ligation assay (PLA) is a method to detect functional signaling associated protein complexes. Growth factor receptor bound protein 2 (GRB2) is an adaptor protein that binds to the phosphorylated residues of active EGFR. Interaction of EGFR and GRB2 correlates with active EGFR signaling and leads to activation of the MAPK/ERK pathway. METHODS A PLA developed to detect EGFR-GRB2 interaction was measured by quantitative immunofluorescence using Automated Quantitative Analysis technology. EGFR pathway activation was assessed in patients with NSCLC with different mutation status along with overall EGFR expression. Additionally, the PLA to detect EGFR-GRB2 interaction was evaluated as a prognostic marker in two cohorts of patients with lung adenocarcinoma. RESULTS The PLA to detect EGFR-GRB2 interaction was unrelated to overall EGFR expression or mutation in a series of patients with NSCLC with known mutation status. EGFR-mutant (p = 0.04) and EGFR/KRAS wild-type tumors (p = 0.0049) had significantly higher EGFR pathway activation compared with KRAS-mutant cases, with no significant difference shown between mutation sites. In two series of patients with lung adenocarcinoma, the PLA to detect EGFR-GRB2 interaction was independently associated with longer survival (hazard ratio = 0.46, 95% confidence interval: 0.2-0.78, p = 0.0085 and hazard ratio = 0.48, 95% confidence interval: 0.2-0.85, p = 0.017). Total EGFR protein expression alone was not correlated with outcome. CONCLUSIONS EGFR colocalization with GRB2 as assessed by PLA is not correlated with EGFR expression levels or mutation status, defining a patient group that may show EGFR pathway activation, as illustrated by its prognostic value. Future studies may determine whether this group is more likely to respond to EGFR-targeted therapies.
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Affiliation(s)
- Maria I Toki
- Department of Pathology, Yale University Medical School, New Haven, Connecticut
| | | | - Mehmet Altan
- Department of Internal Medicine, Yale University Medical School, New Haven, Connecticut
| | - Joseph McLaughlin
- Department of Internal Medicine, Yale University Medical School, New Haven, Connecticut
| | - Brian Henick
- Department of Internal Medicine, Yale University Medical School, New Haven, Connecticut
| | - Kurt A Schalper
- Department of Pathology, Yale University Medical School, New Haven, Connecticut; Department of Internal Medicine, Yale University Medical School, New Haven, Connecticut
| | - Konstantinos N Syrigos
- Third Department of Medicine, University of Athens, School of Medicine, Sotiria General Hospital, Athens, Greece
| | - David L Rimm
- Department of Pathology, Yale University Medical School, New Haven, Connecticut; Department of Internal Medicine, Yale University Medical School, New Haven, Connecticut.
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Ge S, Xie J, Liu F, He J, He J. MicroRNA-19b reduces hepatic stellate cell proliferation by targeting GRB2 in hepatic fibrosis models in vivo and in vitro as part of the inhibitory effect of estradiol. J Cell Biochem 2016; 116:2455-64. [PMID: 25650006 DOI: 10.1002/jcb.25116] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 01/23/2015] [Indexed: 01/09/2023]
Abstract
Estradiol (E2) is a major determinant of gender-based differences in the development of hepatic fibrosis. MicroRNAs (miRNAs) are endogenous 19-25 nucleotide, noncoding, single-stranded RNAs that regulate gene expression by blocking the translation or decreasing the stability of mRNAs and play an important role in liver fibrosis. The mechanisms underlying the regulation of miRNAs by E2 remain largely unknown. In this study, miR-19b levels were higher and were associated with lower GRB2 mRNA and protein levels in female rats more than in male rats. We also showed that miR-19b levels were down-regulated, were associated with the up-regulation of GRB2 mRNA and protein levels in PS (porcine serum-induced hepatic fibrosis) versus NS (normal control) groups and were up-regulated when associated with the down-regulation of GRB2 mRNA and protein levels in PS + E2 versus PS and in aHSC + E2 (estradiol treated aHSC) versus aHSC groups. MiR-19b expression inhibited cell proliferation in aHSCs, and also down-regulated GRB2 protein expression. The overexpression of miR-19b inhibited cell growth and suppressed COL1A1 protein levels by decreasing the levels of GRB2. However, the forced expression of GRB2 partly rescued the effect of miR-19b in the cells, attenuated cell proliferation, and suppressed the GRB2 protein level by up-regulating the levels of GRB2. Taken together, these findings will shed light on the role of miR-19b in regulating aHSC proliferation via the miR-19b/GRB2 axis. This newly identified miR-19b/GRB2 interaction provided novel insights into the suppressive effect of E2 on HSC proliferation and might facilitate the development of therapies targeting hepatic fibrosis.
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Affiliation(s)
- Shanfei Ge
- Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jianping Xie
- Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fei Liu
- Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jinni He
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jinwen He
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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Abdulrahman AO, Ismael MA, Al-Hosaini K, Rame C, Al-Senaidy AM, Dupont J, Ayoub MA. Differential Effects of Camel Milk on Insulin Receptor Signaling - Toward Understanding the Insulin-Like Properties of Camel Milk. Front Endocrinol (Lausanne) 2016; 7:4. [PMID: 26858689 PMCID: PMC4728290 DOI: 10.3389/fendo.2016.00004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/13/2016] [Indexed: 12/13/2022] Open
Abstract
Previous studies on the Arabian camel (Camelus dromedarius) showed beneficial effects of its milk reported in diverse models of human diseases, including a substantial hypoglycemic activity. However, the cellular and molecular mechanisms involved in such effects remain completely unknown. In this study, we hypothesized that camel milk may act at the level of human insulin receptor (hIR) and its related intracellular signaling pathways. Therefore, we examined the effect of camel milk on the activation of hIR transiently expressed in human embryonic kidney 293 (HEK293) cells using bioluminescence resonance energy transfer (BRET) technology. BRET was used to assess, in live cells and real-time, the physical interaction between hIR and insulin receptor signaling proteins (IRS1) and the growth factor receptor-bound protein 2 (Grb2). Our data showed that camel milk did not promote any increase in the BRET signal between hIR and IRS1 or Grb2 in the absence of insulin stimulation. However, it significantly potentiated the maximal insulin-promoted BRET signal between hIR and Grb2 but not IRS1. Interestingly, camel milk appears to differentially impact the downstream signaling since it significantly activated ERK1/2 and potentiated the insulin-induced ERK1/2 but not Akt activation. These observations are to some extent consistent with the BRET data since ERK1/2 and Akt activation are known to reflect the engagement of Grb2 and IRS1 pathways, respectively. The preliminary fractionation of camel milk suggests the peptide/protein nature of the active component in camel milk. Together, our study demonstrates for the first time an allosteric effect of camel milk on insulin receptor conformation and activation with differential effects on its intracellular signaling. These findings should help to shed more light on the hypoglycemic activity of camel milk with potential therapeutic applications.
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Affiliation(s)
| | - Mohammad A. Ismael
- Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Khaled Al-Hosaini
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Christelle Rame
- UMR7247, CNRS, Nouzilly, France
- Université François-Rabelais, Tours, France
- L’Institut Français du Cheval et de l’Équitation, Nouzilly, France
| | | | - Joëlle Dupont
- UMR7247, CNRS, Nouzilly, France
- Université François-Rabelais, Tours, France
- L’Institut Français du Cheval et de l’Équitation, Nouzilly, France
| | - Mohammed Akli Ayoub
- Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- UMR7247, CNRS, Nouzilly, France
- Université François-Rabelais, Tours, France
- L’Institut Français du Cheval et de l’Équitation, Nouzilly, France
- UMR85, Biologie et Bioinformatique des Systèmes de Signalisation Group, INRA, Unité Physiologie de la Reproduction et des Comportements, Nouzilly, France
- LE STUDIUM Loire Valley Institute for Advanced Studies, Orléans, France
- *Correspondence: Mohammed Akli Ayoub,
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40
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Papaioannou D, Geibel S, Kunze MBA, Kay CWM, Waksman G. Structural and biophysical investigation of the interaction of a mutant Grb2 SH2 domain (W121G) with its cognate phosphopeptide. Protein Sci 2015; 25:627-37. [PMID: 26645482 DOI: 10.1002/pro.2856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/27/2015] [Indexed: 11/11/2022]
Abstract
The adaptor protein Grb2 is a key element of mitogenetically important signaling pathways. With its SH2 domain it binds to upstream targets while its SH3 domains bind to downstream proteins thereby relaying signals from the cell membranes to the nucleus. The Grb2 SH2 domain binds to its targets by recognizing a phosphotyrosine (pY) in a pYxNx peptide motif, requiring an Asn at the +2 position C-terminal to the pY with the residue either side of this Asn being hydrophobic. Structural analysis of the Grb2 SH2 domain in complex with its cognate peptide has shown that the peptide adopts a unique β-turn conformation, unlike the extended conformation that phosphopeptides adopt when bound to other SH2 domains. TrpEF1 (W121) is believed to force the peptide into this unusual conformation conferring this unique specificity to the Grb2 SH2 domain. Using X-ray crystallography, electron paramagnetic resonance (EPR) spectroscopy, and isothermal titration calorimetry (ITC), we describe here a series of experiments that explore the role of TrpEF1 in determining the specificity of the Grb2 SH2 domain. Our results demonstrate that the ligand does not adopt a pre-organized structure before binding to the SH2 domain, rather it is the interaction between the two that imposes the hairpin loop to the peptide. Furthermore, we find that the peptide adopts a similar structure when bound to both the wild-type Grb2 SH2 domain and a TrpEF1Gly mutant. This suggests that TrpEF1 is not the determining factor for the conformation of the phosphopeptide.
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Affiliation(s)
- Danai Papaioannou
- UCL And Birkbeck, Institute of Structural and Molecular Biology, Malet Street, London, WC1E 7HX, United Kingdom
| | - Sebastian Geibel
- UCL And Birkbeck, Institute of Structural and Molecular Biology, Malet Street, London, WC1E 7HX, United Kingdom.,Institute for Molecular Infection Biology, University of Würzburg, Josef-Schneider-Strasse 2, Haus D15, Würzburg, 97080, Germany
| | - Micha B A Kunze
- UCL And Birkbeck, Institute of Structural and Molecular Biology, Malet Street, London, WC1E 7HX, United Kingdom
| | - Christopher W M Kay
- UCL And Birkbeck, Institute of Structural and Molecular Biology, Malet Street, London, WC1E 7HX, United Kingdom.,London Centre for Nanotechnology, 17-19 Gordon Street, London, WC1H 0AH, United Kingdom
| | - Gabriel Waksman
- UCL And Birkbeck, Institute of Structural and Molecular Biology, Malet Street, London, WC1E 7HX, United Kingdom
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41
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Yan JF, Kim H, Jeong SK, Lee HJ, Sethi MK, Lee LY, Beavis RC, Im H, Snyder MP, Hofree M, Ideker T, Wu SL, Paik YK, Fanayan S, Hancock WS. Integrated Proteomic and Genomic Analysis of Gastric Cancer Patient Tissues. J Proteome Res 2015; 14:4995-5006. [PMID: 26435392 DOI: 10.1021/acs.jproteome.5b00827] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
V-erb-b2 erythroblastic leukemia viral oncogene homologue 2, known as ERBB2, is an important oncogene in the development of certain cancers. It can form a heterodimer with other epidermal growth factor receptor family members and activate kinase-mediated downstream signaling pathways. ERBB2 gene is located on chromosome 17 and is amplified in a subset of cancers, such as breast, gastric, and colon cancer. Of particular interest to the Chromosome-Centric Human Proteome Project (C-HPP) initiative is the amplification mechanism that typically results in overexpression of a set of genes adjacent to ERBB2, which provides evidence of a linkage between gene location and expression. In this report we studied patient samples from ERBB2-positive together with adjacent control nontumor tissues. In addition, non-ERBB2-expressing patient samples were selected as comparison to study the effect of expression of this oncogene. We detected 196 proteins in ERBB2-positive patient tumor samples that had minimal overlap (29 proteins) with the non-ERBB2 tumor samples. Interaction and pathway analysis identified extracellular signal regulated kinase (ERK) cascade and actin polymerization and actinmyosin assembly contraction as pathways of importance in ERBB2+ and ERBB2- gastric cancer samples, respectively. The raw data files are deposited at ProteomeXchange (identifier: PXD002674) as well as GPMDB.
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Affiliation(s)
- Julia Fangfei Yan
- Barnett Institute and Department of Chemistry and Chemical Biology, Northeastern University , 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Hoguen Kim
- Yonsei University College of Medicine, Yonsei University , 50-1 Yonsei-Ro, Seodaemun-gu, Seoul 120-752, Korea
| | - Seul-Ki Jeong
- Yonsei Proteome Research Center, Yonsei University , 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
| | - Hyoung-Joo Lee
- Yonsei Proteome Research Center, Yonsei University , 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
| | - Manveen K Sethi
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney, New South Wales 2109, Australia
| | - Ling Y Lee
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney, New South Wales 2109, Australia
| | - Ronald C Beavis
- Department of Biochemistry and Medical Genetics, Faculty of Health Sciences, University of Manitoba , 745 Bannatyne Avenue, Winnipeg, Manitoba R3E 0J9, Canada
| | - Hogune Im
- Department of Genetics, Stanford University , Stanford, California 94305, United States
| | - Michael P Snyder
- Department of Genetics, Stanford University , Stanford, California 94305, United States
| | - Matan Hofree
- Department of Computer Science and Engineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Trey Ideker
- Program in Bioinformatics, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Shiaw-Lin Wu
- Barnett Institute and Department of Chemistry and Chemical Biology, Northeastern University , 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Young-Ki Paik
- Yonsei University College of Medicine, Yonsei University , 50-1 Yonsei-Ro, Seodaemun-gu, Seoul 120-752, Korea.,Yonsei Proteome Research Center, Yonsei University , 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
| | - Susan Fanayan
- Department of Biomedical Sciences, Macquarie University , Sydney, New South Wales 2109, Australia
| | - William S Hancock
- Barnett Institute and Department of Chemistry and Chemical Biology, Northeastern University , 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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Ji W, Xu L, Zhou H, Wang S, Fang Y. Meta-analysis of association between the genetic polymorphisms on chromosome 11q and Alzheimer's disease susceptibility. Int J Clin Exp Med 2015; 8:18235-18244. [PMID: 26770425 PMCID: PMC4694325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease mostly occurred in the elderly. Genetic mutation is one of well-established risk factors for AD. Several polymorphisms on chromosome 11q were reported to be associated with AD susceptibility. Hence we performed a meta-analysis to systematically assess the association between the most-reported polymorphisms on chromosome 11q (rs10793294, rs7115850, rs7101429, rs4945261, rs2373115, rs670142, rs610932, rs541458 and rs3851179) and AD risk. A comprehensive literature search in the electronic databases was performed to identify all eligible studies. The pooled odds ratios (OR) and 95% confidence intervals (95% CI) were calculated to evaluate the association between 11q variants and AD risk by using the allelic model. Sensitivity analysis was carried out to analyze the influence of single study on the overall results. Begg's funnel plots and Egger's test were used to assess the publication biases among studies. All the statistical analyses were conducted by using STATA 12.0 Software (Stata Corp, College Station, TX, USA). A total of 35 eligible articles were included in our meta-analysis. Our data showed that the polymorphism of rs610932 were significantly associated with lower AD risk with a pooled OR of 0.88 (95% CI: 0.84-0.92, P=0.005). The other SNPs of rs494526 (OR=0.83, 95% CI: 0.65-1.00, P<0.001), rs2373115 (OR=0.85, 95% CI: 0.75-0.95, P<0.001) and rs670139 (OR=1.09, 95% CI: 1.05-1.12, P=0.554) were shown to be correlated with lower AD risk. Subgroup analysis revealed a similar result in Caucasians. But only the rs610932 polymorphism was found to be associated with lower AD risk in Asians. The polymorphism of rs610932 was shown to be a risk factor for AD while the other three genetic variants (rs494526, rs2373115 and rs610932) may act as protective factors against AD.
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Affiliation(s)
- Weidong Ji
- Department of Neurology, The First People’s Hospital of Shangqiu CityShangqiu 476000, China
| | - Lanling Xu
- Department of Infedtious Diseases, East Hospital, The Branch of The First People’s Hospital of Shangqiu CityShangqiu 476000, China
| | - Haiyun Zhou
- Department of Neurology, The First People’s Hospital of Shangqiu CityShangqiu 476000, China
| | - Suishan Wang
- Department of Neurology, The First People’s Hospital of Shangqiu CityShangqiu 476000, China
| | - Yan Fang
- Department of Neurology, The First People’s Hospital of Shangqiu CityShangqiu 476000, China
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Liu S, Song L, Zeng S, Zhang L. MALAT1-miR-124-RBG2 axis is involved in growth and invasion of HR-HPV-positive cervical cancer cells. Tumour Biol 2015; 37:633-40. [PMID: 26242259 DOI: 10.1007/s13277-015-3732-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 06/28/2015] [Indexed: 12/31/2022] Open
Abstract
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT 1) is a large, infrequently spliced non-coding RNA aberrantly expressed in cervical cancer. But the molecular mechanisms of its oncogenic role are still not quite clear. The present study explored whether there is a competing endogenous RNAs (ceRNAs) mechanism involved in the oncogenic effect of MALAT1. MALAT1 expression was firstly verified in high-risk human papillomavirus (HR-HPV)-positive tumor tissues and cell lines. Its regulation over miR-124 and the downstream target of miR-124 in regulation of growth, invasion, and apoptosis of the cancer cells are also studied. Findings of this study confirmed higher MALAT1 expression in HR-HPV (+) cervical cancer. Knockdown of endogenous MALAT1 significantly reduced cell growth rate and invasion and increased cell apoptosis of Hela and siHa cells. Besides, knockdown of MALAT1 increased the expression of miRNA-124, while ectopic expression of miR-124 decreased MALAT1 expression. In addition, we also verified a direct interaction between miR-124 and 3'UTR of GRB2. MALAT1 can indirectly modulate GRB2 expression via competing miR-124. Knockdown of GRB2 reduced cell invasion and increased cell apoptosis. In conclusion, MALAT1 can promote HR-HPV (+) cancer cell growth and invasion at least partially through the MALAT1-miR-124-RBG2 axis. This finding might provide some useful evidence about the lncRNA interaction regulatory network in tumorigenesis cervical cancer.
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Affiliation(s)
- Shikai Liu
- Cangzhou Central Hospital, No. 16, Xinhua West Road, Canal Zone, Cangzhou City, Hebei Province, 061001, China
| | - Lili Song
- Cangzhou Central Hospital, No. 16, Xinhua West Road, Canal Zone, Cangzhou City, Hebei Province, 061001, China.
| | - Saitian Zeng
- Cangzhou Central Hospital, No. 16, Xinhua West Road, Canal Zone, Cangzhou City, Hebei Province, 061001, China
| | - Liang Zhang
- Cangzhou Central Hospital, No. 16, Xinhua West Road, Canal Zone, Cangzhou City, Hebei Province, 061001, China
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Bartelt RR, Light J, Vacaflores A, Butcher A, Pandian M, Nash P, Houtman JC. Regions outside of conserved PxxPxR motifs drive the high affinity interaction of GRB2 with SH3 domain ligands. Biochim Biophys Acta 2015; 1853:2560-9. [PMID: 26079855 DOI: 10.1016/j.bbamcr.2015.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 05/26/2015] [Accepted: 06/10/2015] [Indexed: 12/20/2022]
Abstract
SH3 domains are evolutionarily conserved protein interaction domains that control nearly all cellular processes in eukaryotes. The current model is that most SH3 domains bind discreet PxxPxR motifs with weak affinity and relatively low selectivity. However, the interactions of full-length SH3 domain-containing proteins with ligands are highly specific and have much stronger affinity. This suggests that regions outside of PxxPxR motifs drive these interactions. In this study, we observed that PxxPxR motifs were required for the binding of the adaptor protein GRB2 to short peptides from its ligand SOS1. Surprisingly, PxxPxR motifs from the proline rich region of SOS1 or CBL were neither necessary nor sufficient for the in vitro or in vivo interaction with full-length GRB2. Together, our findings show that regions outside of the consensus PxxPxR sites drive the high affinity association of GRB2 with SH3 domain ligands, suggesting that the binding mechanism for this and other SH3 domain interactions may be more complex than originally thought.
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Bilal MY, Houtman JCD. GRB2 Nucleates T Cell Receptor-Mediated LAT Clusters That Control PLC-γ1 Activation and Cytokine Production. Front Immunol 2015; 6:141. [PMID: 25870599 PMCID: PMC4378308 DOI: 10.3389/fimmu.2015.00141] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 03/14/2015] [Indexed: 12/16/2022] Open
Abstract
GRB2 is a ubiquitously expressed adaptor protein required for signaling downstream of multiple receptors. To address the role of GRB2 in receptor-mediated signaling, the expression of GRB2 was suppressed in human CD4+ T cells and its role downstream of the T cell receptor (TCR) was examined. Interestingly, GRB2 deficient T cells had enhanced signaling from complexes containing the TCR. However, GRB2 deficient T cells had substantially reduced production of IL-2 and IFN-γ. This defect was attributed to diminished formation of linker for activation of T cells (LAT) signaling clusters, which resulted in reduced MAP kinase activation, calcium flux, and PLC-γ1 recruitment to LAT signaling clusters. Add back of wild-type GRB2, but not a novel N-terminal SH3 domain mutant, rescued LAT microcluster formation, calcium mobilization, and cytokine release, providing the first direct evidence that GRB2, and its ability to bind to SH3 domain ligands, is required for establishing LAT microclusters. Our data demonstrate that the ability of GRB2 to facilitate protein clusters is equally important in regulating TCR-mediated functions as its capacity to recruit effector proteins. This highlights that GRB2 regulates signaling downstream of adaptors and receptors by both recruiting effector proteins and regulating the formation of signaling complexes.
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Affiliation(s)
- Mahmood Yousif Bilal
- Interdisciplinary Graduate Program in Immunology, University of Iowa , Iowa City, IA , USA
| | - Jon C D Houtman
- Interdisciplinary Graduate Program in Immunology, University of Iowa , Iowa City, IA , USA ; Department of Microbiology, Carver College of Medicine, University of Iowa , Iowa City, IA , USA
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Li LY, Zhang K, Jiang H, Xie YM, Liao LD, Chen B, Du ZP, Zhang PX, Chen H, Huang W, Jia W, Cao HH, Zheng W, Li EM, Xu LY. Quantitative proteomics reveals the downregulation of GRB2 as a prominent node of F806-targeted cell proliferation network. J Proteomics 2015; 117:145-55. [PMID: 25659534 DOI: 10.1016/j.jprot.2015.01.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 12/15/2014] [Accepted: 01/18/2015] [Indexed: 02/05/2023]
Abstract
UNLABELLED High-throughput proteomics has successfully identified thousands of proteins as potential therapeutic targets during investigations into mechanisms of drug action. A novel macrolide analog, denoted F806, is a potential antitumor drug. Here, using the quantitative proteomic approach of stable isotope labeling with amino acids in cell culture (SILAC) coupled to high-resolution mass spectrometry (MS), we characterize the F806-regulating protein profiles and identify the potential target molecules or pathways of F806 in esophageal squamous cell carcinoma (ESCC) cells. From a total of 1931 quantified proteins, 181 proteins were found to be down-regulated (FDR p-value<0.1, H/L ratio<0.738), and 119 proteins were up-regulated (FDR p-value<0.1, H/L ratio>1.156). Among the down-regulated proteins, we uncovered the over- and under-represented protein clusters in biological process and molecular function respectively by Gene Ontology analysis. Furthermore, down-regulated and up-regulated proteins were significantly enriched in 37 pathways and 60 sub-pathways by bioinformatic analysis (FDR p-value<0.1), while a down-regulated molecule growth factor receptor-bound protein 2 (GRB2) was a prominent node in fourteen cell proliferation-related sub-pathways. We concluded that GRB2 downregulation would be a potential target of F806 in ESCC cells. BIOLOGICAL SIGNIFICANCE This study used SILAC-based quantitative proteomics screen to systematically characterize molecular changes induced by a novel macrolide analog F806 in esophageal squamous cell carcinoma (ESCC) cells. Followed by bioinformatic analyses, signal pathway networks generated from the quantified proteins, would facilitate future investigation into the further mechanisms of F806 in ESCC cells. Notably, it provided information that growth factor receptor-bound protein 2 (GRB2) would be a prominent node in the F806-targeted cell proliferation network.
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Affiliation(s)
- Li-Yan Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Kai Zhang
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, PR China
| | - Hong Jiang
- Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology, Fuzhou, Fujian, PR China
| | - Yang-Min Xie
- Experimental Animal Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Lian-Di Liao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Bo Chen
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Ze-Peng Du
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Pi-Xian Zhang
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Hong Chen
- Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology, Fuzhou, Fujian, PR China
| | - Wei Huang
- Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology, Fuzhou, Fujian, PR China
| | - Wei Jia
- Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology, Fuzhou, Fujian, PR China
| | - Hui-Hui Cao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Wei Zheng
- Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology, Fuzhou, Fujian, PR China.
| | - En-Min Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong, PR China.
| | - Li-Yan Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, PR China.
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Wang K, Li L, Wu J, Qiu Q, Zhou F, Wu H. The different expression profiles of microRNAs in elderly and young human dental pulp and the role of miR-433 in human dental pulp cells. Mech Ageing Dev 2015; 146-148:1-11. [PMID: 25778413 DOI: 10.1016/j.mad.2015.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 03/09/2015] [Indexed: 01/11/2023]
Abstract
As a kind of endogenous noncoding small RNA, MicroRNA (miRNA) plays important roles of regulation to various physiological functions, while its affections on senescence of human dental pulp cell (HDPCs) are still unknown. Thus, we identified the senescence-associated miRNAs in HDPCs by microarray analysis, predicted their targets and regulatory signaling pathway by gene ontology and Kyoto encyclopedia of genes and genomes pathway database analysis. After validated, the senescence-associated miRNAs' expression level was up- and down-regulated using lentivirus package and cell transfection to find its role in HDPCs' morphology, proliferation, apoptosis, and mineralization. The results showed 27 miRNAs differentially expressed at least 1.5-fold, of which 16 were up-regulated and 11 down-regulated, the function of their targets was mainly focused on signal transduction, cell proliferation, apoptosis, and transcription regulation. According to the change fold, we speculated that miR-433 could be one of the vital senescence-associated miRNAs of HDPCs and found its target (GRB2), validated that miR-433 could negatively regulate GRB2 and the RAS-MAPK signaling pathway, leading to the decline of proliferation and mineralization ability of HDPCs and the acceleration of cell apoptosis, suggesting the regulation of miR-433 might be the potential target to promote repair and regeneration of HDPCs in the elderly.
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Affiliation(s)
- Kejing Wang
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Li Li
- Department of Stomatology, Zhoushan Hospital, Zhoushan, Zhejiang, China
| | - Junjun Wu
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Qin Qiu
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Fengjuan Zhou
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Hongkun Wu
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China.
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Zhou WX, Jiang XH, Yang Y, Chen RD, Hu DM. Clinicopathologic significance of expression of EEF1A2 and GRB2 in pancreatic adenocarcinoma. Shijie Huaren Xiaohua Zazhi 2014; 22:2049-2054. [DOI: 10.11569/wcjd.v22.i14.2049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of eukaryotic elongation factor 1A2 (EEF1A2) and growth factor receptor-bound 2 (GRB2) in pancreatic adenocarcinoma (PA) and to analyze their clinicopathologic significance.
METHODS: Expression of EEF1A2 and GRB2 was examined by immunohistochemistry in 97 PA specimens and surrounding pancreatic tissues.
RESULTS: EEF1A2 expression was absent in normal pancreatic tissue. In contrast, EEF1A2 showed positive immunoreactivity in 77.8% (76/97) of PA cases. The increased eEF1A2 expression was significantly associated with the presence of nodal metastasis (χ2 = 4.28, P = 0.039) and perineural invasion (χ2 = 4.11, P = 0.043). The expression rate of GRB2 in 97 PA specimens and surrounding pancreatic tissues were 82.5% (80/97) and 30.2% (31/97), respectively. The expression level of GRB2 in PA was significantly higher than that in surrounding pancreatic tissues (χ2 = 48.5, P < 0.001). The positive rate of GRB2 expression was significantly correlated with lymph node metastasis (χ2 = 4.63, P = 0.031). There was a positive expression between the expression of EEF1A2 and that of GRB2 in PA (rs = 0.451, P < 0.001).
CONCLUSION: The expression of GRB2 and EEF1A2 is closely correlated with the biological behavior of PA. The expression of GRB2 is significantly correlated with that of EEF1A2.
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