1
|
Tsartsalis S, Sleven H, Fancy N, Wessely F, Smith AM, Willumsen N, Cheung TKD, Rokicki MJ, Chau V, Ifie E, Khozoie C, Ansorge O, Yang X, Jenkyns MH, Davey K, McGarry A, Muirhead RCJ, Debette S, Jackson JS, Montagne A, Owen DR, Miners JS, Love S, Webber C, Cader MZ, Matthews PM. A single nuclear transcriptomic characterisation of mechanisms responsible for impaired angiogenesis and blood-brain barrier function in Alzheimer's disease. Nat Commun 2024; 15:2243. [PMID: 38472200 DOI: 10.1038/s41467-024-46630-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Brain perfusion and blood-brain barrier (BBB) integrity are reduced early in Alzheimer's disease (AD). We performed single nucleus RNA sequencing of vascular cells isolated from AD and non-diseased control brains to characterise pathological transcriptional signatures responsible for this. We show that endothelial cells (EC) are enriched for expression of genes associated with susceptibility to AD. Increased β-amyloid is associated with BBB impairment and a dysfunctional angiogenic response related to a failure of increased pro-angiogenic HIF1A to increased VEGFA signalling to EC. This is associated with vascular inflammatory activation, EC senescence and apoptosis. Our genomic dissection of vascular cell risk gene enrichment provides evidence for a role of EC pathology in AD and suggests that reducing vascular inflammatory activation and restoring effective angiogenesis could reduce vascular dysfunction contributing to the genesis or progression of early AD.
Collapse
Affiliation(s)
- Stergios Tsartsalis
- Department of Brain Sciences, Imperial College London, London, UK
- Department of Psychiatry, University of Geneva, Geneva, Switzerland
| | - Hannah Sleven
- Nuffield Department of Clinical Neurosciences, Kavli Institute for Nanoscience Discovery, Dorothy Crowfoot Hodgkin Building, Sherrington Road, University of Oxford, Oxford, UK
| | - Nurun Fancy
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Frank Wessely
- UK Dementia Research Institute Centre, Cardiff University, Cardiff, UK
| | - Amy M Smith
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
- Centre for Brain Research and Department of Pharmacology and Clinical Pharmacology, University of Auckland, Auckland, New Zealand
| | - Nanet Willumsen
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - To Ka Dorcas Cheung
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Michal J Rokicki
- UK Dementia Research Institute Centre, Cardiff University, Cardiff, UK
| | - Vicky Chau
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Eseoghene Ifie
- Neuropathology Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Combiz Khozoie
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Olaf Ansorge
- Neuropathology Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Xin Yang
- Department of Brain Sciences, Imperial College London, London, UK
- St Edmund Hall, University of Oxford, Oxford, UK
| | - Marion H Jenkyns
- Department of Brain Sciences, Imperial College London, London, UK
| | - Karen Davey
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Aisling McGarry
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Robert C J Muirhead
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Stephanie Debette
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team ELEANOR, UMR 1219, 33000, Bordeaux, France
| | - Johanna S Jackson
- Department of Brain Sciences, Imperial College London, London, UK
- UK Dementia Research Institute Centre, Imperial College London, London, UK
| | - Axel Montagne
- Centre for Clinical Brain Sciences, and UK Dementia Research Institute, University of Edinburgh, Edinburgh, EH16 4SB, UK
| | - David R Owen
- Department of Brain Sciences, Imperial College London, London, UK
| | - J Scott Miners
- Dementia Research Group, University of Bristol, Bristol, UK
| | - Seth Love
- Dementia Research Group, University of Bristol, Bristol, UK
| | - Caleb Webber
- UK Dementia Research Institute Centre, Cardiff University, Cardiff, UK
| | - M Zameel Cader
- Nuffield Department of Clinical Neurosciences, Kavli Institute for Nanoscience Discovery, Dorothy Crowfoot Hodgkin Building, Sherrington Road, University of Oxford, Oxford, UK
| | - Paul M Matthews
- Department of Brain Sciences, Imperial College London, London, UK.
- UK Dementia Research Institute Centre, Imperial College London, London, UK.
- St Edmund Hall, University of Oxford, Oxford, UK.
| |
Collapse
|
2
|
Coagulome and the tumor microenvironment: an actionable interplay. Trends Cancer 2022; 8:369-383. [PMID: 35027336 DOI: 10.1016/j.trecan.2021.12.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 11/19/2021] [Accepted: 12/15/2021] [Indexed: 12/14/2022]
Abstract
Human tumors often trigger a hypercoagulable state that promotes hemostatic complications, including venous thromboembolism. The recent application of systems biology to the study of the coagulome highlighted its link to shaping the tumor microenvironment (TME), both within and outside of the vascular space. Addressing this link provides the opportunity to revisit the significance of biomarkers of hemostasis and assess the communication between vasculature and tumor parenchyma, an important topic considering the advent of immune checkpoint inhibitors and vascular normalization strategies. Understanding how the coagulome and TME influence each other offers exciting new prospects for predicting hemostatic complications and boosting the effectiveness of cancer treatment.
Collapse
|
3
|
Prudovsky I. Cellular Mechanisms of FGF-Stimulated Tissue Repair. Cells 2021; 10:cells10071830. [PMID: 34360000 PMCID: PMC8304273 DOI: 10.3390/cells10071830] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 01/10/2023] Open
Abstract
Growth factors belonging to the FGF family play important roles in tissue and organ repair after trauma. In this review, I discuss the regulation by FGFs of the aspects of cellular behavior important for reparative processes. In particular, I focus on the FGF-dependent regulation of cell proliferation, cell stemness, de-differentiation, inflammation, angiogenesis, cell senescence, cell death, and the production of proteases. In addition, I review the available literature on the enhancement of FGF expression and secretion in damaged tissues resulting in the increased FGF supply required for tissue repair.
Collapse
Affiliation(s)
- Igor Prudovsky
- Maine Medical Center Research Institute, 81 Research Dr., Scarborough, ME 04074, USA
| |
Collapse
|
4
|
Breikaa RM, Lilly B. The Notch Pathway: A Link Between COVID-19 Pathophysiology and Its Cardiovascular Complications. Front Cardiovasc Med 2021; 8:681948. [PMID: 34124207 PMCID: PMC8187573 DOI: 10.3389/fcvm.2021.681948] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/06/2021] [Indexed: 12/27/2022] Open
Abstract
COVID-19 is associated with a large number of cardiovascular sequelae, including dysrhythmias, myocardial injury, myocarditis and thrombosis. The Notch pathway is one likely culprit leading to these complications due to its direct role in viral entry, inflammation and coagulation processes, all shown to be key parts of COVID-19 pathogenesis. This review highlights links between the pathophysiology of SARS-CoV2 and the Notch signaling pathway that serve as primary drivers of the cardiovascular complications seen in COVID-19 patients.
Collapse
Affiliation(s)
- Randa M. Breikaa
- Center for Cardiovascular Research and The Heart Center, Nationwide Children's Hospital, Columbus, OH, United States
- Molecular, Cellular and Developmental Biology Program, The Ohio State University, Columbus, OH, United States
| | - Brenda Lilly
- Center for Cardiovascular Research and The Heart Center, Nationwide Children's Hospital, Columbus, OH, United States
- Department of Pediatrics, The Ohio State University, Columbus, OH, United States
| |
Collapse
|
5
|
Chiarini A, Dal Prà I, Faggian G, Armato U, Luciani GB. Maladaptive remodeling of pulmonary artery root autografts after Ross procedure: A proteomic study. J Thorac Cardiovasc Surg 2020; 159:621-632.e3. [DOI: 10.1016/j.jtcvs.2019.07.083] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 12/15/2022]
|
6
|
Li L, Huang X, He Z, Xiong Y, Fang Q. miRNA-210-3p regulates trophoblast proliferation and invasiveness through fibroblast growth factor 1 in selective intrauterine growth restriction. J Cell Mol Med 2019; 23:4422-4433. [PMID: 30993882 PMCID: PMC6533475 DOI: 10.1111/jcmm.14335] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/15/2019] [Accepted: 03/30/2019] [Indexed: 12/25/2022] Open
Abstract
Selective intrauterine growth restriction (sIUGR), which affects approximately 10%-15% of monochorionic (MC) twin pregnancies, is highly associated with intrauterine foetal death and neurological impairment in both twins. Data suggest that unequal sharing of the single placenta is the main contributor to birth weight discordance. While MC twins and their placenta derive from a single zygote and harbour almost identical genetic material, the underlying mechanisms of phenotypic discrepancies in MC twins remain unclear. MicroRNAs are small non-coding RNA molecules that regulate gene expression but do not change the DNA sequence. Our preliminary study showed that microRNA-210-3p (miR-210-3p) was significantly upregulated in the placental share of the smaller sIUGR twin. Here, we investigate the potential role of miR-210-3p in placental dysplasia, which generally results from dysfunction of trophoblast cells. Functional analysis revealed that miR-210-3p, induced by hypoxia-inducible factor 1α (HIF1α) under hypoxic conditions, suppressed the proliferation and invasiveness of trophoblast cell lines. Further RNA sequencing analysis and luciferase reporter assays were performed, revealing that fibroblast growth factor 1 (FGF1) is an influential target gene of miR-210-3p. Moreover, correlations among miR-210-3p levels, HIF1α and FGF1 expression and the smaller placental share were validated in sIUGR specimens. These findings suggest that upregulation of miR-210-3p may contribute to impaired placentation of the smaller twin by decreasing FGF1 expression in sIUGR.
Collapse
Affiliation(s)
- Lin Li
- Department of Obstetrics and Gynecology, Fetal Medicine CenterThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Xuan Huang
- Department of Obstetrics and Gynecology, Fetal Medicine CenterThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Zhiming He
- Department of Obstetrics and Gynecology, Fetal Medicine CenterThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Yuanyan Xiong
- Key Laboratory of Gene Engineering of the Ministry of Education and State Key Laboratory of Biocontrol, School of Life SciencesSun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Qun Fang
- Department of Obstetrics and Gynecology, Fetal Medicine CenterThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouGuangdongChina
| |
Collapse
|
7
|
Jastrzebski S, Kalinowski J, Mun S, Shin B, Adapala NS, Jacome-Galarza CE, Mirza F, Aguila HL, Drissi H, Sanjay A, Canalis E, Lee SK, Lorenzo JA. Protease-Activated Receptor 1 Deletion Causes Enhanced Osteoclastogenesis in Response to Inflammatory Signals through a Notch2-Dependent Mechanism. THE JOURNAL OF IMMUNOLOGY 2019; 203:105-116. [PMID: 31109956 DOI: 10.4049/jimmunol.1801032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 04/25/2019] [Indexed: 12/29/2022]
Abstract
We found that protease-activated receptor 1 (PAR1) was transiently induced in cultured osteoclast precursor cells. Therefore, we examined the bone phenotype and response to resorptive stimuli of PAR1-deficient (knockout [KO]) mice. Bones and bone marrow-derived cells from PAR1 KO and wild-type (WT) mice were assessed using microcomputed tomography, histomorphometry, in vitro cultures, and RT-PCR. Osteoclastic responses to TNF-α (TNF) challenge in calvaria were analyzed with and without a specific neutralizing Ab to the Notch2-negative regulatory region (N2-NRR Ab). In vivo under homeostatic conditions, there were minimal differences in bone mass or bone cells between PAR1 KO and WT mice. However, PAR1 KO myeloid cells demonstrated enhanced osteoclastogenesis in response to receptor activator of NF-κB ligand (RANKL) or the combination of RANKL and TNF. Strikingly, in vivo osteoclastogenic responses of PAR1 KO mice to TNF were markedly enhanced. We found that N2-NRR Ab reduced TNF-induced osteoclastogenesis in PAR1 KO mice to WT levels without affecting WT responses. Similarly, in vitro N2-NRR Ab reduced RANKL-induced osteoclastogenesis in PAR1 KO cells to WT levels without altering WT responses. We conclude that PAR1 functions to limit Notch2 signaling in responses to RANKL and TNF and moderates osteoclastogenic response to these cytokines. This effect appears, at least in part, to be cell autonomous because enhanced osteoclastogenesis was seen in highly purified PAR1 KO osteoclast precursor cells. It is likely that this pathway is involved in regulating the response of bone to diseases associated with inflammatory signals.
Collapse
Affiliation(s)
| | | | - Sehwan Mun
- Center on Aging, UConn Health, Farmington, CT 06030
| | - Bongjin Shin
- Center on Aging, UConn Health, Farmington, CT 06030
| | | | | | - Faryal Mirza
- Department of Medicine, UConn Health, Farmington, CT 06030
| | | | - Hicham Drissi
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA 30329
| | - Archana Sanjay
- Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030
| | - Ernesto Canalis
- Department of Medicine, UConn Health, Farmington, CT 06030.,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030
| | | | - Joseph A Lorenzo
- Department of Medicine, UConn Health, Farmington, CT 06030; .,Department of Orthopaedic Surgery, UConn Health, Farmington, CT 06030
| |
Collapse
|
8
|
Keeley T, Kirov A, Koh WY, Demambro V, Bergquist I, Cotter J, Caradonna P, Siviski ME, Best B, Henderson T, Rosen CJ, Liaw L, Prudovsky I, Small DJ. Resistance to visceral obesity is associated with increased locomotion in mice expressing an endothelial cell-specific fibroblast growth factor 1 transgene. Physiol Rep 2019; 7:e14034. [PMID: 30972920 PMCID: PMC6458108 DOI: 10.14814/phy2.14034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 12/13/2022] Open
Abstract
Overdevelopment of visceral adipose is positively correlated with the etiology of obesity-associated pathologies including cardiovascular disease and insulin resistance. However, identification of genetic, molecular, and physiological factors regulating adipose development and function in response to nutritional stress is incomplete. Fibroblast Growth Factor 1 (FGF1) is a cytokine expressed and released by both adipocytes and endothelial cells under hypoxia, thermal, and oxidative stress. Expression of Fibroblast Growth Factor 1 (FGF1) in adipose is required for normal depot development and remodeling. Loss of FGF1 leads to deleterious changes in adipose morphology, metabolism, and insulin resistance. Conversely, diabetic and obese mice injected with recombinant FGF1 display improvements in insulin sensitivity and a reduction in adiposity. We report in this novel, in vivo study that transgenic mice expressing an endothelial-specific FGF1 transgene (FGF1-Tek) are resistant to high-fat diet-induced abdominal adipose accretion and are more glucose-tolerant than wild-type control animals. Metabolic chamber analyses indicate that suppression of the development of visceral adiposity and insulin resistance was not associated with alterations in appetite or resting metabolic rate in the FGF1-Tek strain. Instead, FGF1-Tek mice display increased locomotor activity that likely promotes the utilization of dietary fatty acids before they can accumulate in adipose and liver. This study provides insight into the impact that genetic differences dictating the production of FGF1 has on the risk for developing obesity-related metabolic disease in response to nutritional stress.
Collapse
Affiliation(s)
- Tyler Keeley
- Department of Chemistry and PhysicsCollege of Arts and SciencesUniversity of New EnglandBiddefordMaine
| | - Aleksandr Kirov
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Woon Yuen Koh
- Department of Mathematical SciencesCollege of Arts and SciencesUniversity of New EnglandBiddefordMaine
| | - Victoria Demambro
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Ivy Bergquist
- Center for Excellence in NeuroscienceCollege of MedicineUniversity of New EnglandBiddefordMaine
| | - Jessica Cotter
- Department of Chemistry and PhysicsCollege of Arts and SciencesUniversity of New EnglandBiddefordMaine
| | - Peter Caradonna
- Department of Chemistry and PhysicsCollege of Arts and SciencesUniversity of New EnglandBiddefordMaine
| | - Matthew E. Siviski
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Bradley Best
- Department of Chemistry and PhysicsCollege of Arts and SciencesUniversity of New EnglandBiddefordMaine
| | - Terry Henderson
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Clifford J. Rosen
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Lucy Liaw
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Igor Prudovsky
- Center for Molecular MedicineMaine Medical Center Research InstituteScarboroughMaine
| | - Deena J. Small
- Department of Chemistry and PhysicsCollege of Arts and SciencesUniversity of New EnglandBiddefordMaine
| |
Collapse
|
9
|
Chiarini A, Onorati F, Marconi M, Pasquali A, Patuzzo C, Malashicheva A, Irtyega O, Faggian G, Pignatti PF, Trabetti E, Armato U, Dal Pra I. Studies on sporadic non-syndromic thoracic aortic aneurysms: 1. Deregulation of Jagged/Notch 1 homeostasis and selection of synthetic/secretor phenotype smooth muscle cells. Eur J Prev Cardiol 2018; 25:42-50. [DOI: 10.1177/2047487318759119] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background Sporadic non-syndromic thoracic aortic aneurysms (SNSTAAs) are less well understood than familial non-syndromic or syndromic ones. The study aimed at defining the peculiar morphologic and molecular changes occurring in the media layer of SNSTAAs. Design This study was based on a single centre design. Methods Media layer samples taken from seven carefully selected SNSTAAs and seven reference patients (controls) were investigated via quantitative polymerase chain reaction, proteomics-bioinformatics, immunoblotting, quantitative histology, and immunohistochemistry/immunofluorescence. Results In SNSTAAs media, aortic smooth muscle cells numbers were halved due to an apoptotic process coupled with a negligible cell proliferation. Cystathionine γ-lyase was diffusely up-regulated. Surviving aortic smooth muscle cells exhibited diverging phenotypes: in inner- and outer-media contractile cells prevailed, having higher contents of smooth-muscle-α-actin holoprotein (45-kDa) and of caspase-3-cleaved smooth-muscle-α-actin 25-kDa fragments; in mid-media, aortic smooth muscle cells exhibited a synthetic/secretor phenotype, down-regulating vimentin, but up-regulating glial fibrillary acidic protein, trans-Golgi network 46 protein, Jagged1 (172-kDa) holoprotein, and Jagged1’s receptor Notch1. Extracellular soluble Jagged1 (42-kDa) fragments accumulated. Conclusions In SNSTAAs, there is a relentless aortic smooth muscle cells attrition caused by the up-regulated cystathionine γ-lyase. In mid-media, synthetic/secretor aortic smooth muscle cells intensify Jagged1/NOTCH1 signalling in the attempt to counterbalance the weakened aortic wall, due to aortic smooth muscle cells net loss and mechanical stress. Synthetic/secretor aortic smooth muscle cells are apoptosis-prone, and the accruing thrombin-cleaved Jagged1 fragments counteract the otherwise useful effects of Jagged1/NOTCH1 signalling, thus hampering tissue homeostasis/remodelling, and aortic smooth muscle cells adhesion, differentiation, and migration.
Collapse
Affiliation(s)
- Anna Chiarini
- Histology and Embryology Section, University of Verona Medical School, Italy
| | - Francesco Onorati
- Department of Surgical Sciences, University of Verona Medical School, Italy
| | - Maddalena Marconi
- Histology and Embryology Section, University of Verona Medical School, Italy
| | | | - Cristina Patuzzo
- Biology and Genetics Section, University of Verona Medical School, Italy
| | | | - Olga Irtyega
- Federal Almazov Medical Research Centre, St. Petersburg, Russia
| | - Giuseppe Faggian
- Department of Surgical Sciences, University of Verona Medical School, Italy
| | - Pier F Pignatti
- Biology and Genetics Section, University of Verona Medical School, Italy
| | | | - Ubaldo Armato
- Histology and Embryology Section, University of Verona Medical School, Italy
| | - Ilaria Dal Pra
- Histology and Embryology Section, University of Verona Medical School, Italy
| |
Collapse
|
10
|
Weaver AN, Burch MB, Cooper TS, Della Manna DL, Wei S, Ojesina AI, Rosenthal EL, Yang ES. Notch Signaling Activation Is Associated with Patient Mortality and Increased FGF1-Mediated Invasion in Squamous Cell Carcinoma of the Oral Cavity. Mol Cancer Res 2016; 14:883-91. [DOI: 10.1158/1541-7786.mcr-16-0114] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/15/2016] [Indexed: 11/16/2022]
|
11
|
Kirov A, Kacer D, Conley BA, Vary CPH, Prudovsky I. AHNAK2 Participates in the Stress-Induced Nonclassical FGF1 Secretion Pathway. J Cell Biochem 2016; 116:1522-31. [PMID: 25560297 DOI: 10.1002/jcb.25047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 12/22/2022]
Abstract
FGF1 is a nonclassically released growth factor that regulates carcinogenesis, angiogenesis, and inflammation. In vitro and in vivo, FGF1 export is stimulated by cell stress. Upon stress, FGF1 is transported to the plasma membrane where it localizes prior to transmembrane translocation. To determine which proteins participate in the submembrane localization of FGF1 and its export, we used immunoprecipitation mass spectrometry to identify novel proteins that associate with FGF1 during heat shock. The heat shock-dependent association of FGF1 with the large protein AHNAK2 was observed. Heat shock induced the translocation of FGF1 and AHNAK2 to the cytoskeletal fraction. In heat-shocked cells, FGF1 and the C-terminal fragment of AHNAK2 colocalized with F-actin in the vicinity of the cell membrane. Depletion of AHNAK2 resulted in a drastic decrease of stress-induced FGF1 export but did not affect spontaneous FGF2 export and FGF1 release induced by the inhibition of Notch signaling. Thus, AHNAK2 is an important element of the FGF1 nonclassical export pathway.
Collapse
Affiliation(s)
- Aleksandr Kirov
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, 04074, Maine
| | - Doreen Kacer
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, 04074, Maine
| | - Barbara A Conley
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, 04074, Maine
| | - Calvin P H Vary
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, 04074, Maine
| | - Igor Prudovsky
- Center for Molecular Medicine, Maine Medical Center Research Institute, Maine Medical Center, Scarborough, 04074, Maine
| |
Collapse
|
12
|
Prudovsky I, Kacer D, Davis J, Shah V, Jayanthi S, Huber I, Dakshinamurthy R, Ganter O, Soldi R, Neivandt D, Guvench O, Suresh Kumar TK. Folding of Fibroblast Growth Factor 1 Is Critical for Its Nonclassical Release. Biochemistry 2016; 55:1159-67. [PMID: 26836284 DOI: 10.1021/acs.biochem.5b01341] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fibroblast growth factor 1 (FGF1), a ubiquitously expressed pro-angiogenic protein that is involved in tissue repair, carcinogenesis, and maintenance of vasculature stability, is released from the cells via a stress-dependent nonclassical secretory pathway. FGF1 secretion is a result of transmembrane translocation of this protein. It correlates with the ability of FGF1 to permeabilize membranes composed of acidic phospholipids. Like several other nonclassically exported proteins, FGF1 exhibits β-barrel folding. To assess the role of folding of FGF1 in its secretion, we applied targeted mutagenesis in combination with a complex of biophysical methods and molecular dynamics studies, followed by artificial membrane permeabilization and stress-induced release experiments. It has been demonstrated that a mutation of proline 135 located in the C-terminus of FGF1 results in (i) partial unfolding of FGF1, (ii) a decrease in FGF1's ability to permeabilize bilayers composed of phosphatidylserine, and (iii) drastic inhibition of stress-induced FGF1 export. Thus, folding of FGF1 is critical for its nonclassical secretion.
Collapse
Affiliation(s)
- Igor Prudovsky
- Maine Medical Center Research Institute , 81 Research Drive, Scarborough, Maine 04074, United States.,Graduate School of Biomedical Science and Engineering, University of Maine , Jenness Hall, Orono, Maine 04469, United States
| | - Doreen Kacer
- Maine Medical Center Research Institute , 81 Research Drive, Scarborough, Maine 04074, United States
| | - Julie Davis
- Department of Chemistry and Biochemistry, University of Arkansas , Chemistry Building, Fayetteville, Arkansas 72701, United States
| | - Varun Shah
- Department of Chemistry and Biochemistry, University of Arkansas , Chemistry Building, Fayetteville, Arkansas 72701, United States
| | - Srinivas Jayanthi
- Department of Chemistry and Biochemistry, University of Arkansas , Chemistry Building, Fayetteville, Arkansas 72701, United States
| | - Isabelle Huber
- Department of Chemistry and Biochemistry, University of Arkansas , Chemistry Building, Fayetteville, Arkansas 72701, United States
| | - Rajalingam Dakshinamurthy
- Department of Chemistry and Biochemistry, University of Arkansas , Chemistry Building, Fayetteville, Arkansas 72701, United States
| | - Owen Ganter
- College of Pharmacy, University of New England , Pharmacy Building, 716 Stevens Avenue, Portland, Maine 04103, United States
| | - Raffaella Soldi
- Maine Medical Center Research Institute , 81 Research Drive, Scarborough, Maine 04074, United States
| | - David Neivandt
- Graduate School of Biomedical Science and Engineering, University of Maine , Jenness Hall, Orono, Maine 04469, United States
| | - Olgun Guvench
- Graduate School of Biomedical Science and Engineering, University of Maine , Jenness Hall, Orono, Maine 04469, United States.,College of Pharmacy, University of New England , Pharmacy Building, 716 Stevens Avenue, Portland, Maine 04103, United States
| | | |
Collapse
|
13
|
Prudovsky I, Kumar TKS, Sterling S, Neivandt D. Protein-phospholipid interactions in nonclassical protein secretion: problem and methods of study. Int J Mol Sci 2013; 14:3734-72. [PMID: 23396106 PMCID: PMC3588068 DOI: 10.3390/ijms14023734] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 01/24/2013] [Accepted: 01/25/2013] [Indexed: 12/30/2022] Open
Abstract
Extracellular proteins devoid of signal peptides use nonclassical secretion mechanisms for their export. These mechanisms are independent of the endoplasmic reticulum and Golgi. Some nonclassically released proteins, particularly fibroblast growth factors (FGF) 1 and 2, are exported as a result of their direct translocation through the cell membrane. This process requires specific interactions of released proteins with membrane phospholipids. In this review written by a cell biologist, a structural biologist and two membrane engineers, we discuss the following subjects: (i) Phenomenon of nonclassical protein release and its biological significance; (ii) Composition of the FGF1 multiprotein release complex (MRC); (iii) The relationship between FGF1 export and acidic phospholipid externalization; (iv) Interactions of FGF1 MRC components with acidic phospholipids; (v) Methods to study the transmembrane translocation of proteins; (vi) Membrane models to study nonclassical protein release.
Collapse
Affiliation(s)
- Igor Prudovsky
- Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME 04074, USA
| | | | - Sarah Sterling
- Department of Chemical and Biological Engineering, University of Maine, Orono, ME 04469, USA; E-Mails: (S.S.); (D.N.)
| | - David Neivandt
- Department of Chemical and Biological Engineering, University of Maine, Orono, ME 04469, USA; E-Mails: (S.S.); (D.N.)
| |
Collapse
|
14
|
Kirov A, Al-Hashimi H, Solomon P, Mazur C, Thorpe PE, Sims PJ, Tarantini F, Kumar TKS, Prudovsky I. Phosphatidylserine externalization and membrane blebbing are involved in the nonclassical export of FGF1. J Cell Biochem 2012; 113:956-66. [PMID: 22034063 DOI: 10.1002/jcb.23425] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The mechanisms of nonclassical export of signal peptide-less proteins remain insufficiently understood. Here, we demonstrate that stress-induced unconventional export of FGF1, a potent and ubiquitously expressed mitogenic and proangiogenic protein, is associated with and dependent on the formation of membrane blebs and localized cell surface exposure of phosphatidylserine (PS). In addition, we found that the differentiation of promonocytic cells results in massive FGF1 release, which also correlates with membrane blebbing and exposure of PS. These findings indicate that the externalization of acidic phospholipids could be used as a pharmacological target to regulate the availability of FGF1 in the organism.
Collapse
Affiliation(s)
- Aleksandr Kirov
- Maine Medical Center Research Institute, Scarborough, Maine Medical Center, ME 04074, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Kacer D, McIntire C, Kirov A, Kany E, Roth J, Liaw L, Small D, Friesel R, Basilico C, Tarantini F, Verdi J, Prudovsky I. Regulation of non-classical FGF1 release and FGF-dependent cell transformation by CBF1-mediated notch signaling. J Cell Physiol 2011; 226:3064-75. [PMID: 21302306 DOI: 10.1002/jcp.22663] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
FGF1, a widely expressed proangiogenic factor involved in tissue repair and carcinogenesis, is released from cells through a non-classical pathway independent of endoplasmic reticulum and Golgi. Although several proteins participating in FGF1 export were identified, genetic mechanisms regulating this process remained obscure. We found that FGF1 export and expression are regulated through Notch signaling mediated by transcription factor CBF1 and its partner MAML. The expression of a dominant negative (dn) form of CBF1 in 3T3 cells induces transcription of FGF1 and sphingosine kinase 1 (SphK1), which is a component of FGF1 export pathway. dnCBF1 expression stimulates the stress-independent release of transduced FGF1 from NIH 3T3 cells and endogenous FGF1 from A375 melanoma cells. NIH 3T3 cells transfected with dnCBF1 form colonies in soft agar and produce rapidly growing highly angiogenic tumors in nude mice. The transformed phenotype of dnCBF1 transfected cells is efficiently blocked by dn forms of FGF receptor 1 and S100A13, which is a component of FGF1 export pathway. FGF1 export and acceleration of cell growth induced by dnCBF1 depend on SphK1. Similar to dnCBF1, dnMAML transfection induces FGF1 expression and release, and accelerates cell proliferation. The latter effect is strongly decreased in FGF1 null cells. We suggest that the regulation of FGF1 expression and release by CBF1-mediated Notch signaling can play an important role in tumor formation.
Collapse
Affiliation(s)
- Doreen Kacer
- Maine Medical Center Research Institute, Scarborough, Maine 04074, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Kremer D, Aktas O, Hartung HP, Küry P. The complex world of oligodendroglial differentiation inhibitors. Ann Neurol 2011; 69:602-18. [PMID: 21520230 DOI: 10.1002/ana.22415] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Myelination is a central nervous system (CNS) process wherein oligodendrocyte-axon interactions lead to the establishment of myelin sheaths that stabilize, protect, and electrically insulate axons. In inflammatory demyelinating diseases such as multiple sclerosis (MS), the degeneration and eventual loss of functional myelin sheaths slows and blocks saltatory conduction in axons, which results in clinical impairment. However, remyelination can occur, and lesions can be partially repaired, resulting in clinical remission. The recruitment and activation of resident oligodendrocyte precursor cells (OPCs) play a critical role in the repair process because these cells have the capacity to differentiate into functional myelinating cells. Mature oligodendrocytes, however, are thought to have lost the capacity to develop new myelin sheaths and frequently undergo programmed cell death in MS. The endogenous capacity to generate new oligodendrocytes in MS is limited, and this is predominantly due to the presence of inhibitory components that block OPC differentiation and maturation. Here, we present an overview of recently identified negative regulators of oligodendroglial differentiation and their potential relevance for CNS repair in MS. Because currently available immunomodulatory drugs for MS mainly target inflammatory cascades outside the brain and fail to repair existing lesions, achieving more efficient lesion repair constitutes an important goal for future MS therapies.
Collapse
Affiliation(s)
- David Kremer
- Department of Neurology, Medical Faculty, Heinrich-Heine-University of Düsseldorf, Düsseldorf, Germany
| | | | | | | |
Collapse
|
17
|
Ambler CA, Watt FM. Adult epidermal Notch activity induces dermal accumulation of T cells and neural crest derivatives through upregulation of jagged 1. Development 2010; 137:3569-79. [PMID: 20940224 PMCID: PMC2964092 DOI: 10.1242/dev.050310] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2010] [Indexed: 12/13/2022]
Abstract
Notch signalling regulates epidermal differentiation and tumour formation via non-cell autonomous mechanisms that are incompletely understood. This study shows that epidermal Notch activation via a 4-hydroxy-tamoxifen-inducible transgene caused epidermal thickening, focal detachment from the underlying dermis and hair clumping. In addition, there was dermal accumulation of T lymphocytes and stromal cells, some of which localised to the blisters at the epidermal-dermal boundary. The T cell infiltrate was responsible for hair clumping but not for other Notch phenotypes. Notch-induced stromal cells were heterogeneous, expressing markers of neural crest, melanocytes, smooth muscle and peripheral nerve. Although Slug1 expression was expanded in the epidermis, the stromal cells did not arise through epithelial-mesenchymal transition. Epidermal Notch activation resulted in upregulation of jagged 1 in both epidermis and dermis. When Notch was activated in the absence of epidermal jagged 1, jagged 1 was not upregulated in the dermis, and epidermal thickening, blister formation, accumulation of T cells and stromal cells were inhibited. Gene expression profiling revealed that epidermal Notch activation resulted in upregulation of several growth factors and cytokines, including TNFα, the expression of which was dependent on epidermal jagged 1. We conclude that jagged 1 is a key mediator of non-cell autonomous Notch signalling in skin.
Collapse
Affiliation(s)
- Carrie A. Ambler
- Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Cambridge CB2 0RE, UK
- School of Biological and Biomedical Sciences and NorthEast England Stem Cell Institute, Durham University, South Road, Durham DH1 3LE, UK
| | - Fiona M. Watt
- Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Cambridge CB2 0RE, UK
- Wellcome Trust Centre for Stem Cell Research, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, UK
| |
Collapse
|
18
|
Ucuzian AA, Brewster LP, East AT, Pang Y, Gassman AA, Greisler HP. Characterization of the chemotactic and mitogenic response of SMCs to PDGF-BB and FGF-2 in fibrin hydrogels. J Biomed Mater Res A 2010; 94:988-96. [PMID: 20730936 PMCID: PMC2928161 DOI: 10.1002/jbm.a.32786] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The delivery of growth factors to cellularize biocompatible scaffolds like fibrin is a commonly used strategy in tissue engineering. We characterized smooth muscle cells (SMC) proliferation and chemotaxis in response to PDGF-BB and FGF-2, alone and in combination, in 2D culture and in 3D fibrin hydrogels. While both growth factors induced an equipotent mitogenic response in 2D culture, only FGF-2 was significantly mitogenic for SMCs in 3D culture. Only PDGF-BB was significantly chemotactic in a modified Boyden chamber assay. In a 3D assay of matrix invasion, both growth factors induced an invasive response into the fibrin hydrogel in both proliferating and nonproliferating, mitomycin C (MMC) treated cells. The invasive response was less attenuated by the inhibition of proliferation in PDGF-BB stimulated cells compared with FGF-2 stimulated cells. We conclude that SMCs cultured in fibrin hydrogels have a more robust chemotactic response to PDGF-BB compared with FGF-2, and that the response to FGF-2 is more dependent on cell proliferation. Delivery of both growth factors together potentiates the chemotactic, but not mitogenic response to either growth factor alone.
Collapse
Affiliation(s)
- Areck A. Ucuzian
- Department of Surgery, Loyola University Medical Center, Maywood, IL
- Department of Cell Biology, Neurobiology, & Anatomy, Loyola University Medical Center, Maywood, IL
| | - Luke P. Brewster
- Department of Surgery, Loyola University Medical Center, Maywood, IL
- Department of Cell Biology, Neurobiology, & Anatomy, Loyola University Medical Center, Maywood, IL
| | - Andrea T. East
- Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Yongang Pang
- Department of Surgery, Loyola University Medical Center, Maywood, IL
| | - Andrew A. Gassman
- Department of Surgery, Loyola University Medical Center, Maywood, IL
| | - Howard P. Greisler
- Department of Surgery, Loyola University Medical Center, Maywood, IL
- Department of Cell Biology, Neurobiology, & Anatomy, Loyola University Medical Center, Maywood, IL
- Research and Surgical Services, Edward J. Hines Jr. V.A. Hospital, Hines, IL
| |
Collapse
|