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Gui H, Tang WHW, Francke S, Li J, She R, Bazeley P, Pereira NL, Adams K, Luzum JA, Connolly TM, Hernandez AF, McNaughton CD, Williams LK, Lanfear DE. Common Variants on FGD5 Increase Hazard of Mortality or Rehospitalization in Patients With Heart Failure From the ASCEND-HF Trial. Circ Heart Fail 2023; 16:e010438. [PMID: 37725680 PMCID: PMC10597552 DOI: 10.1161/circheartfailure.122.010438] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 06/13/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Heart failure remains a global health burden, and patients hospitalized are particularly at risk, but genetic associates for subsequent death or rehospitalization are still lacking. METHODS The genetic substudy of the ASCEND-HF trial (Acute Study of Clinical Effectiveness of Nesiritide in Decompensated Heart Failure) was used to perform genome-wide association study and transethnic meta-analysis. The overall trial included the patients of self-reported European ancestry (n=2173) and African ancestry (n=507). The end point was death or heart failure rehospitalization within 180 days. Cox models adjusted for 11 a priori predictors of rehospitalization and 5 genetic principal components were used to test the association between single-nucleotide polymorphisms and outcome. Summary statistics from the 2 populations were combined via meta-analysis with the significance threshold considered P<5×10-8. RESULTS Common variants (rs2342882 and rs35850039 in complete linkage disequilibrium) located in FGD5 were significantly associated with the primary outcome in both ancestry groups (European Americans: hazard ratio [HR], 1.38; P=2.42×10-6; African ancestry: HR, 1.51; P=4.43×10-3; HR in meta-analysis, 1.41; P=4.25×10-8). FGD5 encodes a regulator of VEGF (vascular endothelial growth factor)-mediated angiogenesis, and in silico investigation revealed several previous genome-wide association study hits in this gene, among which rs748431 was associated with our outcome (HR, 1.20; meta P<0.01). Sensitivity analysis proved FGD5 common variants survival association did not appear to operate via coronary artery disease or nesiritide treatment (P>0.05); and the signal was still significant when changing the censoring time from 180 to 30 days (HR, 1.39; P=1.59×10-5). CONCLUSIONS In this multiethnic genome-wide association study of ASCEND-HF, single-nucleotide polymorphisms in FGD5 were associated with increased risk of death or rehospitalization. Additional investigation is required to examine biological mechanisms and whether FGD5 could be a therapeutic target. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT00475852.
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Affiliation(s)
- Hongsheng Gui
- Center for Individualized and Genomics Medicine Research (H.G., J.A.L., L.K.W., D.E.L.), Henry Ford Hospital, Detroit, MI
| | - W H Wilson Tang
- Department of Cardiovascular Medicine, Cleveland Clinic, OH (W.H.W.T., P.B.)
| | | | - Jia Li
- Department of Public Health Science (J.L., R.S.), Henry Ford Hospital, Detroit, MI
| | - Ruicong She
- Department of Public Health Science (J.L., R.S.), Henry Ford Hospital, Detroit, MI
| | - Peter Bazeley
- Department of Cardiovascular Medicine, Cleveland Clinic, OH (W.H.W.T., P.B.)
| | - Naveen L Pereira
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN (N.L.P.)
| | - Kirkwood Adams
- Department of Medicine, University of North Carolina, Chapel Hill (K.A.)
| | - Jasmine A Luzum
- Center for Individualized and Genomics Medicine Research (H.G., J.A.L., L.K.W., D.E.L.), Henry Ford Hospital, Detroit, MI
- Department of Clinical Pharmacy, University of Michigan, Ann Arbor (J.A.L.)
| | - Thomas M Connolly
- Lansdale, PA, previously Janssen Research & Development LLC, Spring House, PA (T.M.C.)
| | | | - Candace D McNaughton
- Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, TN (C.D.M.)
| | - L Keoki Williams
- Center for Individualized and Genomics Medicine Research (H.G., J.A.L., L.K.W., D.E.L.), Henry Ford Hospital, Detroit, MI
| | - David E Lanfear
- Center for Individualized and Genomics Medicine Research (H.G., J.A.L., L.K.W., D.E.L.), Henry Ford Hospital, Detroit, MI
- Heart and Vascular Institute (D.E.L.), Henry Ford Hospital, Detroit, MI
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Zhou Z, Zheng J, Lin D, Xu R, Chen Y, Hu X. Exosomes derived from dental pulp stem cells accelerate cutaneous wound healing by enhancing angiogenesis via the Cdc42/p38 MAPK pathway. Int J Mol Med 2022; 50:143. [PMID: 36321793 PMCID: PMC9662140 DOI: 10.3892/ijmm.2022.5199] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 08/22/2022] [Accepted: 10/18/2022] [Indexed: 11/22/2022] Open
Abstract
Skin wound healing is a common challenging clinical issue which requires advanced treatment strategies. The present study investigated the therapeutic effects of exosomes derived from dental pulp stem cells (DPSC‑Exos) on cutaneous wound healing and the underlying mechanisms. The effects of DPSC‑Exos on cutaneous wound healing in mice were examined by measuring wound closure rates, and using histological and immunohistochemical analysis. A series of functional assays were performed to evaluate the effects of DPSC‑Exos on the angiogenic activities of human umbilical vein endothelial cells (HUVECs) <i>in vitro</i>. Tandem mass tag‑based quantitative proteomics analysis of DPSCs and DPSC‑Exos was performed. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were used to evaluate the biological functions and pathways for the differentially expressed proteins in DPSC‑Exos. Western blot analysis was used to assess the protein levels of cell division control protein 42 (Cdc42) and p38 in DPSC‑Exos and in HUVECs subjected to DPSC‑Exos‑induced angiogenesis. SB203580, a p38 mitogen‑activated protein kinase (MAPK) signaling pathway inhibitor, was employed to verify the role of the p38 MAPK pathway <i>in vitro</i> and <i>in vivo</i>. Histological and immunohistochemical staining revealed that the DPSC‑Exos accelerated wound healing by promoting neovascularization. The DPSC‑Exos promoted the migration, proliferation and capillary formation capacity of HUVECs. Proteomics data demonstrated that proteins contained in DPSC‑Exos regulated vasculature development and angiogenesis. Pathway analysis revealed that proteins expressed in DPSC‑Exos were involved in several pathways, including MAPK pathway. Western blot analysis demonstrated that the DPSC‑Exos increased the protein levels of Cdc42 and phosphorylation of p38 in HUVECs. SB203580 suppressed the angiogenesis induced by DPSC‑Exos. On the whole, the present study demonstrates that DPSC‑Exos accelerate cutaneous wound healing by enhancing the angiogenic properties of HUVECs via the Cdc42/p38 MAPK signaling pathway.
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Affiliation(s)
| | - Jianmao Zheng
- Correspondence to: Dr Jianmao Zheng or Professor Xiaoli Hu, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong 510055, P.R. China, E-mail: , E-mail:
| | | | | | | | - Xiaoli Hu
- Correspondence to: Dr Jianmao Zheng or Professor Xiaoli Hu, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong 510055, P.R. China, E-mail: , E-mail:
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Abstract
Long noncoding RNAs (lncRNAs) refers to a class of RNAs that have at least 200 nucleotides and do not encode proteins, and the relationship between lncRNA and cancer has recently attracted considerable research attention. The lncRNA FGD5-AS1 is a newly discovered lncRNA with a length of 3772 nucleotides. Studies have found that FGD5-AS1 is abnormally highly expressed in many cancer tissues and was closely related to the lymph node metastasis, tumor invasion, survival time, and recurrence rate of various cancers. Mechanistic analyses show that FGD5-AS1 can stabilize mRNA expression by sponging miRNA, which not only induces cancer cell proliferation, metastasis, invasion, and chemoresistance in vitro, but also promotes tumor growth and metastasis in vivo. In addition, FGD5-AS1 can serve as a diagnostic or prognostic marker for a variety of cancers. This review demonstrates the clinical significance of FGD5-AS1 in human cancer and its role in tumorigenesis and tumor progression.
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Affiliation(s)
- Na He
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Linbiao Xiang
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Lei Chen
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Haobin Tong
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Keshen Wang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Jie Zhao
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Feixue Song
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Hanteng Yang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Xinyuan Wei
- Department of Oncology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Zuoyi Jiao
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu, China
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You H, Gao S, Xu X, Yuan H. Faciogenital dysplasia 5 confers the cancer stem cell-like traits of gastric cancer cells through enhancing Sox2 protein stability. Environ Toxicol 2021; 36:2426-2435. [PMID: 34427968 DOI: 10.1002/tox.23355] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/10/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
The promoting roles of faciogenital dysplasia 5 (FGD5) in tumor progression have been identified in various tumors, however, its roles in gastric cancer progression are still confusing. Currently, it was found that FGD5 was highly expressed in gastric cancer tissues and negatively correlated with different types of survival of gastric cancer patients via online dataset analysis. In vitro analysis of different types of gastric cancer cell lines and normal gastric epithelial cells obtained a consistent result. Then FGD5 was knocked down in gastric cancer cell lines through two independent siRNAs against FGD5 and it was identified that FGD5 knockdown suppressed the cancer stem cell (CSC)-like traits of gastric cancer cells through analyzing the expression of CSC markers, ALDH1 activity and spheroid-formation ability. Further mechanistic studies revealed that FGD5 interacted with Sox2 protein, a critical regulator of CSC progression, enhanced Sox2 protein stability and decreased its ubquitination. Additionally, FGD5 supported the CSC-like traits dependent on Sox2 expression. Taken together, this work identified a novel FGD5/Sox2 axis responsible for the CSC-like traits of gastric cancer cells.
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Affiliation(s)
- Huaqiang You
- Department of Gastroenterology, The First People's Hospital of Yuhang District, Hangzhou, China
| | - Shan Gao
- Department of General Surgery, The First People's Hospital of Yuhang District, Hangzhou, China
| | - Xiaoping Xu
- Department of Anorectal Surgery, The First People's Hospital of Yuhang District, Hangzhou, China
| | - Hong Yuan
- Department of Internal Medicine-Cardiovascular, The First People's Hospital of Yuhang District, Hangzhou, China
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Chen N, Han X, Yin B, Bai X, Wang Y. FGD5 facilitates tumor growth by regulating EGFR ubiquitination in gastric cancer. Biochem Biophys Res Commun 2021; 562:43-49. [PMID: 34034092 DOI: 10.1016/j.bbrc.2021.04.106] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 01/19/2023]
Abstract
FGD5 (faciogenital dysplasia-5), a Rho-family guanine nucleotide exchange factor, has been identified as a key regulator of endothelial cells angiogenesis and apoptosis. However, the expression and role of FGD5 in the pathogenesis of gastric cancer remain unknown. In the present study, we first detected FGD5 expression in tumor tissues of different stages by immunofluorescence and confirmed that FGD5 expression was associated with stages in human gastric cancer. Knockdown FGD5 by shRNA in 7901 and BGC823 human gastric cells lines inhibited tumorigenesis and migration in vivo and in vitro. Mechanistically, co-immunoprecipitation (Co-IP) assay showed that FGD5 interacted with EGFR and decreased EGFR ubiquitination. Additionally, FGD5 sustained the activation of EGFR downstream signaling molecules, including STAT3 and pSTAT3. Furthermore, we showed that FGD5 could induce resistance to chemotherapy 5Fu/CIS, however, a well-known STAT3 inhibitor FLL32 could reverse FGD5-induced chemotherapy resistance in vivo. In conclusion, we are the first to demonstrate that FGD5 expression was associated with tumor stage and proliferation in gastric cancer and targeting FGD5 might be a potential therapeutic target for EGFR-STAT3 resistance gastric cancer.
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Affiliation(s)
- Na Chen
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Xiangdong Han
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Bo Yin
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Xue Bai
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Yubin Wang
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China.
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Coarfa C, Grimm SL, Katz T, Zhang Y, Jangid RK, Walker CL, Moorthy B, Lingappan K. Epigenetic response to hyperoxia in the neonatal lung is sexually dimorphic. Redox Biol 2020; 37:101718. [PMID: 32961439 PMCID: PMC7509469 DOI: 10.1016/j.redox.2020.101718] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 11/19/2022] Open
Abstract
Sex as a biological variable plays a critical role both during lung development and in modulating postnatal hyperoxic lung injury and repair. The molecular mechanisms behind these sex-specific differences need to be elucidated. Our objective was to determine if the neonatal lung epigenomic landscape reconfiguration has profound effects on gene expression and could underlie sex-biased differences in protection from or susceptibility to diseases. Neonatal male and female mice (C57BL/6) were exposed to hyperoxia (95% FiO, PND 1-5: saccular stage) or room air and euthanized on PND 7 and 21. Pulmonary gene expression was studied using RNA-seq on Illumina HiSeq 2500 platform and quantified. Epigenomic landscape was assessed using Chromatin Immunoprecipitation (ChIP-Seq) of the H3K27ac histone modification mark, associated with active genes, enhancers, and super-enhancers. These data were then integrated, pathways identified and validated. Sex-biased epigenetic modulation of gene expression leads to differential regulation of biological processes in the developing lung at baseline and after exposure to hyperoxia. The female lung exhibits a more robust epigenomic response for the H3K27ac mark in response to hyperoxia. Epigenomic changes distribute over genomic and epigenomic domains in a sex-specific manner. The differential epigenomic responses also enrich for key transcription regulators crucial for lung development. In addition, by utilizing H3K27ac as the target epigenomic change we were also able to identify new epigenomic reprogramming at super-enhancers. Finally, we report for the first time that the upregulation of p21 (Cdkn1a) in the injured neonatal lung could be mediated through gain of H3K27ac. These data demonstrate that modulation of transcription via epigenomic landscape alterations may contribute to the sex-specific differences in preterm neonatal hyperoxic lung injury and repair.
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Affiliation(s)
- Cristian Coarfa
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, USA; Center for Precision Environmental Health, Baylor College of Medicine, Houston, USA; Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, USA.
| | - Sandra L Grimm
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, USA
| | - Tiffany Katz
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, USA; Obstetrics and Gynecology Department, Baylor College of Medicine, Houston, USA
| | - Yuhao Zhang
- Pediatrics/Neonatology, Baylor College of Medicine, Houston, USA
| | - Rahul K Jangid
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, USA; Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, USA
| | - Cheryl L Walker
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, USA; Center for Precision Environmental Health, Baylor College of Medicine, Houston, USA; Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, USA
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Kondakova IV, Shashova EE, Sidenko EA, Astakhova TM, Zakharova LA, Sharova NP. Estrogen Receptors and Ubiquitin Proteasome System: Mutual Regulation. Biomolecules 2020; 10:biom10040500. [PMID: 32224970 PMCID: PMC7226411 DOI: 10.3390/biom10040500] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/21/2020] [Accepted: 03/25/2020] [Indexed: 12/11/2022] Open
Abstract
This review provides information on the structure of estrogen receptors (ERs), their localization and functions in mammalian cells. Additionally, the structure of proteasomes and mechanisms of protein ubiquitination and cleavage are described. According to the modern concept, the ubiquitin proteasome system (UPS) is involved in the regulation of the activity of ERs in several ways. First, UPS performs the ubiquitination of ERs with a change in their functional activity. Second, UPS degrades ERs and their transcriptional regulators. Third, UPS affects the expression of ER genes. In addition, the opportunity of the regulation of proteasome functioning by ERs—in particular, the expression of immune proteasomes—is discussed. Understanding the complex mechanisms underlying the regulation of ERs and proteasomes has great prospects for the development of new therapeutic agents that can make a significant contribution to the treatment of diseases associated with the impaired function of these biomolecules.
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Affiliation(s)
- Irina V. Kondakova
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 5 Kooperativny Street, 634009 Tomsk, Russia; (I.V.K.); (E.E.S.); (E.A.S.)
| | - Elena E. Shashova
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 5 Kooperativny Street, 634009 Tomsk, Russia; (I.V.K.); (E.E.S.); (E.A.S.)
| | - Evgenia A. Sidenko
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 5 Kooperativny Street, 634009 Tomsk, Russia; (I.V.K.); (E.E.S.); (E.A.S.)
| | - Tatiana M. Astakhova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 26 Vavilov Street, 119334 Moscow, Russia; (T.M.A.); (L.A.Z.)
| | - Liudmila A. Zakharova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 26 Vavilov Street, 119334 Moscow, Russia; (T.M.A.); (L.A.Z.)
| | - Natalia P. Sharova
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 26 Vavilov Street, 119334 Moscow, Russia; (T.M.A.); (L.A.Z.)
- Correspondence: ; Tel.: +7-499-135-7674; Fax: +7-499-135-3322
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Park S, Guo Y, Negre J, Preto J, Smithers CC, Azad AK, Overduin M, Murray AG, Eitzen G. Fgd5 is a Rac1-specific Rho GEF that is selectively inhibited by aurintricarboxylic acid. Small GTPases 2019; 12:147-160. [PMID: 31601145 DOI: 10.1080/21541248.2019.1674765] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 02/07/2023] Open
Abstract
Rho proteins are signalling molecules that control cellular dynamics, movement and morphological changes. They are activated by Rho guanine-nucleotide exchange factors (Rho GEFs) that transduce upstream signals into Rho-mediated activation of downstream processes. Fgd5 is a Rho GEF involved in angiogenesis and its target Rho protein for this process has been linked to Cdc42 activation. Here, we examined the function of purified Fgd5, specifically, which Rho proteins it activates and pinpoint the structural domains required for enzymatic activity. Using a GEF enzyme assay, we found that purified Fgd5 showed preferential activation of Rac1 and direct binding of Rac1 in pull-down and co-immunoprecipitation assays. Structural comparisons showed that the Fgd5 DH domain is highly similar to the Rac1 GEF, TrioN, supporting a role for Fgd5 as a Rac1 GEF. Compounds that bind to purified Fgd5 DH-PH protein were identified by screening a small molecule library via surface plasmon resonance. The effects of eleven ligands were further examined for their ability to inhibit the Fgd5 GEF enzymatic activity and Rac1 interaction. From these studies, we found that the compound aurintricarboxylic acid, and to a lesser extent mitoxantrone dihydrochloride, inhibited both Fgd5 GEF activation of Rac1 and their interaction. Aurintricarboxylic acid had no effect on the activity or binding of the Rac1 GEF, TrioN, thus demonstrating the feasibility of selectively disrupting Rho GEF activators. Abbreviations: a.a.: amino acid; ATA: aurintricarboxylic acid; DH: Dbl homology; DOCK: dictator of cytokinesis; Fgd: faciogenital dysplasia; GEF: guanine-nucleotide exchange factor; GST: glutathione S-transferase; LOPAC: library of pharmacologically active compounds; PH: pleckstrin homology; PDB: protein data bank; s.e.m.: standard error of the mean; SPR: surface plasmon resonance.
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Affiliation(s)
- Sally Park
- Department of Cell Biology, University of Alberta , Edmonton, Alberta, Canada
| | - Yitian Guo
- Department of Medicine-Division of Pulmonary Medicine, University of Alberta , Edmonton, Alberta, Canada
| | - Judeah Negre
- Department of Cell Biology, University of Alberta , Edmonton, Alberta, Canada
| | - Jordane Preto
- Department of Medicine, University of Alberta , Edmonton, Alberta, Canada
| | - Cameron C Smithers
- Department of Biochemistry, University of Alberta , Edmonton, Alberta, Canada
| | - Abul Kalam Azad
- Department of Medicine, Division of Nephrology, University of Alberta , Edmonton, Alberta, Canada
| | - Michael Overduin
- Department of Biochemistry, University of Alberta , Edmonton, Alberta, Canada
| | - Allan G Murray
- Department of Medicine, Division of Nephrology, University of Alberta , Edmonton, Alberta, Canada
| | - Gary Eitzen
- Department of Cell Biology, University of Alberta , Edmonton, Alberta, Canada.,Department of Medicine-Division of Pulmonary Medicine, University of Alberta , Edmonton, Alberta, Canada
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Lu W, Xu W, Li J, Chen Y, Pan Y, Wu B. Effects of vascular endothelial growth factor and insulin growth factor‑1 on proliferation, migration, osteogenesis and vascularization of human carious dental pulp stem cells. Mol Med Rep 2019; 20:3924-3932. [PMID: 31485628 DOI: 10.3892/mmr.2019.10606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/15/2019] [Indexed: 11/05/2022] Open
Affiliation(s)
- Wanyu Lu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wenan Xu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jianjia Li
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Yan Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Yuhua Pan
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Rauff A, LaBelle SA, Strobel HA, Hoying JB, Weiss JA. Imaging the Dynamic Interaction Between Sprouting Microvessels and the Extracellular Matrix. Front Physiol 2019; 10:1011. [PMID: 31507428 PMCID: PMC6713949 DOI: 10.3389/fphys.2019.01011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/22/2019] [Indexed: 12/21/2022] Open
Abstract
Thorough understanding of growth and evolution of tissue vasculature is fundamental to many fields of medicine including cancer therapy, wound healing, and tissue engineering. Angiogenesis, the growth of new vessels from existing ones, is dynamically influenced by a variety of environmental factors, including mechanical and biophysical factors, chemotactic factors, proteolysis, and interaction with stromal cells. Yet, dynamic interactions between neovessels and their environment are difficult to study with traditional fixed time imaging techniques. Advancements in imaging technologies permit time-series and volumetric imaging, affording the ability to visualize microvessel growth over 3D space and time. Time-lapse imaging has led to more informative investigations of angiogenesis. The environmental factors implicated in angiogenesis span a wide range of signals. Neovessels advance through stromal matrices by forming attachments and pulling and pushing on their microenvironment, reorganizing matrix fibers, and inducing large deformations of the surrounding stroma. Concurrently, neovessels secrete proteolytic enzymes to degrade their basement membrane, create space for new vessels to grow, and release matrix-bound cytokines. Growing neovessels also respond to a host of soluble and matrix-bound growth factors, and display preferential growth along a cytokine gradient. Lastly, stromal cells such as macrophages and mesenchymal stem cells (MSCs) interact directly with neovessels and their surrounding matrix to facilitate sprouting, vessel fusion, and tissue remodeling. This review highlights how time-lapse imaging techniques advanced our understanding of the interaction of blood vessels with their environment during sprouting angiogenesis. The technology provides means to characterize the evolution of microvessel behavior, providing new insights and holding great promise for further research on the process of angiogenesis.
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Affiliation(s)
- Adam Rauff
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, United States
- Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, UT, United States
| | - Steven A. LaBelle
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, United States
- Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, UT, United States
| | - Hannah A. Strobel
- Innovations Laboratory, Advanced Solutions Life Sciences, Manchester, NH, United States
| | - James B. Hoying
- Innovations Laboratory, Advanced Solutions Life Sciences, Manchester, NH, United States
| | - Jeffrey A. Weiss
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, United States
- Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, UT, United States
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Eitzen G, Smithers CC, Murray AG, Overduin M. Structure and function of the Fgd family of divergent FYVE domain proteins. Biochem Cell Biol 2019; 97:257-264. [DOI: 10.1139/bcb-2018-0185] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Gary Eitzen
- Department of Cell Biology, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Cameron C. Smithers
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Allan G. Murray
- Department of Medicine, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Michael Overduin
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2R3, Canada
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Wang XJ, Tian DC, Wang FW, Zhang MH, Fan CD, Chen W, Wang MH, Fu XY, Ma JK. Astaxanthin inhibits homocysteine‑induced endothelial cell dysfunction via the regulation of the reactive oxygen species‑dependent VEGF‑VEGFR2‑FAK signaling pathway. Mol Med Rep 2019; 19:4753-4760. [PMID: 31059085 PMCID: PMC6522805 DOI: 10.3892/mmr.2019.10162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 04/10/2019] [Indexed: 12/11/2022] Open
Abstract
Increased plasma levels of homocysteine (Hcy) can cause severe damage to vascular endothelial cells. Hcy‑induced endothelial cell dysfunction contributes to the occurrence and development of human cerebrovascular diseases (CVDs). Our previous studies have revealed that astaxanthin (ATX) exhibits novel cardioprotective activity against Hcy‑induced cardiotoxicity in vitro and in vivo. However, the protective effect and mechanism of ATX against Hcy‑induced endothelial cell dysfunction requires further investigation. In the present study, treatment of human umbilical vascular endothelial cells (HUVECs) with Hcy inhibited the migration, invasive and tube formation potentials of these cells in a dose‑dependent manner. Hcy treatment further induced a time‑dependent increase in the production of reactive oxygen species (ROS), and downregulated the expression of vascular endothelial growth factor (VEGF), phosphorylated (p)‑Tyr‑VEGF receptor 2 (VEGFR2) and p‑Tyr397‑focal adhesion kinase (FAK). On the contrary, ATX pre‑treatment significantly inhibited Hcy‑induced cytotoxicity and increased HUVEC migration, invasion and tube formation following Hcy treatment. The mechanism of action may involve the effective inhibition of Hcy‑induced ROS generation and the recovery of FAK phosphorylation. Collectively, our findings suggested that ATX could inhibit Hcy‑induced endothelial dysfunction by suppressing Hcy‑induced activation of the VEGF‑VEGFR2‑FAK signaling axis, which indicates the novel therapeutic potential of ATX in treating Hcy‑mediated CVD.
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Affiliation(s)
- Xian-Jun Wang
- Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, Shandong 276000, P.R. China
| | - Da-Chen Tian
- Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, Shandong 276000, P.R. China
| | - Feng-Wen Wang
- Department of Biochemistry, Basic Medical School, Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Meng-Hao Zhang
- Department of Biochemistry, Basic Medical School, Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Cun-Dong Fan
- Department of Biochemistry, Basic Medical School, Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Wang Chen
- Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, Shandong 276000, P.R. China
| | - Mei-Hong Wang
- Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, Shandong 276000, P.R. China
| | - Xiao-Yan Fu
- Department of Biochemistry, Basic Medical School, Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Jin-Kui Ma
- Department of Food Science and Technology, School of Food and Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, Guangdong 526061, P.R. China
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Heldin J, Sander MR, Leino M, Thomsson S, Lennartsson J, Söderberg O. Dynamin inhibitors impair platelet-derived growth factor β-receptor dimerization and signaling. Exp Cell Res 2019; 380:69-79. [PMID: 30970237 DOI: 10.1016/j.yexcr.2019.04.004] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/01/2019] [Accepted: 04/03/2019] [Indexed: 10/27/2022]
Abstract
The role of plasma membrane composition and dynamics in the activation process of receptor tyrosine kinases (RTKs) is still poorly understood. In this study we have investigated how signaling via the RTK, platelet-derived growth factor β-receptor (PDGFR-β) is affected by Dynasore or Dyngo-4a, which are commonly used dynamin inhibitors. PDGFR-β preferentially internalizes via clathrin-coated pits and in this pathway, Dynamin II has a major role in the formation and release of vesicles from the plasma membrane by performing the membrane scission. We have found that dynamin inhibitors impedes the activation of PDGFR-β by impairing ligand-induced dimerization of the receptor monomers, which leads to a subsequent lack of phosphorylation and activation both of receptors and downstream effectors, such as ERK1/2 and AKT. In contrast, dynamin inhibitors did not affect epidermal growth factor receptor (EGFR) dimerization and phosphorylation. Our findings suggest that there is a link between plasma membrane dynamics and PDGFR-β activation, and that this link is not shared with the epidermal growth factor receptor.
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Affiliation(s)
- Johan Heldin
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden.
| | - Marie Rubin Sander
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Mattias Leino
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Sara Thomsson
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Johan Lennartsson
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Ola Söderberg
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
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Meng D, Meng M, Luo A, Jing X, Wang G, Huang S, Luo M, Shao S, Zhao X, Liu R. Effects of VEGFR1 + hematopoietic progenitor cells on pre-metastatic niche formation and in vivo metastasis of breast cancer cells. J Cancer Res Clin Oncol. 2019;145:411-427. [PMID: 30483898 PMCID: PMC6373264 DOI: 10.1007/s00432-018-2802-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/19/2018] [Indexed: 02/07/2023]
Abstract
The pre-metastatic niche has been shown to play a critical role in tumor metastasis, and its formation is closely related to the tumor microenvironment. However, the underlying molecular mechanisms remain unclear. In the present study, we successfully established a mouse model of lung metastasis using luciferase-expressing MDA-MB-435s cells. In this model, recruitment of vascular endothelial growth factor receptor-1 (VEGFR1)+CD133+ hematopoietic progenitor cells (HPCs) was gradually increased in lung but gradually decreased after the formation of tumor colonies in lung. We also established a highly metastatic MDA-MB-435s (MDA-MB-435s-HM) cell line from the mouse model. Changes in protein profiles in different culture conditions were investigated by protein microarray analysis. The levels of CXC chemokine ligand 16, interleukin (IL)-2Rα, IL-2Rγ, matrix metalloproteinase (MMP)-1, MMP-9, platelet-derived growth factor receptor (PDGFR)-α, stromal cell-derived factor (SDF)-1α, transforming growth factor (TGF)-β, platelet endothelial cell adhesion molecule (PECAM)-1 and vascular endothelial (VE)-cadherin were significantly greater (> fivefold) in the culture medium from MDA-MB-435s-HM cells than in that from MDA-MB-435s cells. Moreover, the levels of MMP-9, PDGFR-α, and PECAM-1 were significantly greater in the co-culture medium of MDA-MB-435s-HM cells and CD133+ HPCs than in that from MDA-MB-435s-HM cells. Differentially expressed proteins were validated by enzyme-linked immunosorbent assay, and expression of their transcripts was confirmed by quantitative real-time polymerase chain reaction. Moreover, inhibition of MMP-9, PDGFR-α, and PECAM-1 by their specific inhibitors or antibodies significantly decreased cell migration, delayed lung metastasis, and decreased recruitment of VEGFR1+CD133+ HPCs into lung. Intra-hepatic growth of HPCs enhanced the invasive growth of MDA-MB-435s-HM cells in the liver. Our data indicate that VEGFR1+CD133+ HPCs contribute to lung metastasis.
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Klaesson A, Grannas K, Ebai T, Heldin J, Koos B, Leino M, Raykova D, Oelrich J, Arngården L, Söderberg O, Landegren U. Improved efficiency of in situ protein analysis by proximity ligation using UnFold probes. Sci Rep 2018; 8:5400. [PMID: 29599435 PMCID: PMC5876389 DOI: 10.1038/s41598-018-23582-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 03/14/2018] [Indexed: 12/26/2022] Open
Abstract
We have redesigned probes for in situ proximity ligation assay (PLA), resulting in more efficient localized detection of target proteins. In situ PLA depends on recognition of target proteins by pairs of antibody-oligonucleotide conjugates (PLA probes), which jointly give rise to DNA circles that template localized rolling circle amplification reactions. The requirement for dual recognition of the target proteins improves selectivity by ignoring any cross-reactivity not shared by the antibodies, and it allows detection of protein-protein interactions and post-translational modifications. We herein describe an improved design of the PLA probes –UnFold probes – where all elements required for formation of circular DNA strands are incorporated in the probes. Premature interactions between the UnFold probes are prevented by including an enzymatic “unfolding” step in the detection reactions. This allows DNA circles to form by pairs of reagents only after excess reagents have been removed. We demonstrate the performance of UnFold probes for detection of protein-protein interactions and post-translational modifications in fixed cells and tissues, revealing considerably more efficient signal generation. We also apply the UnFold probes to detect IL-6 in solution phase after capture on solid supports, demonstrating increased sensitivity over both normal sandwich enzyme-linked immunosorbent assays and conventional PLA assays.
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Affiliation(s)
- Axel Klaesson
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Karin Grannas
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Tonge Ebai
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Johan Heldin
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Björn Koos
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Mattias Leino
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Doroteya Raykova
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Johan Oelrich
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Linda Arngården
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Ola Söderberg
- Department of Pharmaceutical Biosciences, Pharmaceutical Cell Biology, Uppsala University, Uppsala, Sweden.
| | - Ulf Landegren
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
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