1
|
Rouault P, Guimbal S, Cornuault L, Bourguignon C, Foussard N, Alzieu P, Choveau F, Benoist D, Chapouly C, Gadeau AP, Couffinhal T, Renault MA. Thrombosis in the Coronary Microvasculature Impairs Cardiac Relaxation and Induces Diastolic Dysfunction. Arterioscler Thromb Vasc Biol 2024; 44:e1-e18. [PMID: 38031839 DOI: 10.1161/atvbaha.123.320040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/14/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Heart failure with preserved ejection fraction is proposed to be caused by endothelial dysfunction in cardiac microvessels. Our goal was to identify molecular and cellular mechanisms underlying the development of cardiac microvessel disease and diastolic dysfunction in the setting of type 2 diabetes. METHODS We used Leprdb/db (leptin receptor-deficient) female mice as a model of type 2 diabetes and heart failure with preserved ejection fraction and identified Hhipl1 (hedgehog interacting protein-like 1), which encodes for a decoy receptor for HH (hedgehog) ligands as a gene upregulated in the cardiac vascular fraction of diseased mice. RESULTS We then used Dhh (desert HH)-deficient mice to investigate the functional consequences of impaired HH signaling in the adult heart. We found that Dhh-deficient mice displayed increased end-diastolic pressure while left ventricular ejection fraction was comparable to that of control mice. This phenotype was associated with a reduced exercise tolerance in the treadmill test, suggesting that Dhh-deficient mice do present heart failure. At molecular and cellular levels, impaired cardiac relaxation in DhhECKO mice was associated with a significantly decreased PLN (phospholamban) phosphorylation on Thr17 (threonine 17) and an alteration of sarcomeric shortening ex vivo. Besides, as expected, Dhh-deficient mice exhibited phenotypic changes in their cardiac microvessels including a prominent prothrombotic phenotype. Importantly, aspirin therapy prevented the occurrence of both diastolic dysfunction and exercise intolerance in these mice. To confirm the critical role of thrombosis in the pathophysiology of diastolic dysfunction, we verified Leprdb/db also displays increased cardiac microvessel thrombosis. Moreover, consistently, with Dhh-deficient mice, we found that aspirin treatment decreased end-diastolic pressure and improved exercise tolerance in Leprdb/db mice. CONCLUSIONS Altogether, these results demonstrate that microvessel thrombosis may participate in the pathophysiology of heart failure with preserved ejection fraction.
Collapse
Affiliation(s)
- Paul Rouault
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Sarah Guimbal
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Lauriane Cornuault
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Célia Bourguignon
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Ninon Foussard
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Philippe Alzieu
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Frank Choveau
- INSERM U1045, CRCTB (Centre de recherche cardio-thoracique de Bordeaux), IHU Liryc (Institut Hospitalo Universitaire des maladies du rythme cardiaque), University of Bordeaux, France (F.C., D.B.)
| | - David Benoist
- INSERM U1045, CRCTB (Centre de recherche cardio-thoracique de Bordeaux), IHU Liryc (Institut Hospitalo Universitaire des maladies du rythme cardiaque), University of Bordeaux, France (F.C., D.B.)
| | - Candice Chapouly
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Alain-Pierre Gadeau
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Thierry Couffinhal
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| | - Marie-Ange Renault
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1034, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France (P.R., S.G., L.C., C.B., N.F., P.A., C.C., A.-P.G., T.C., M.-A.R.)
| |
Collapse
|
2
|
Brito LA, Nóbrega PR, Dias DA, Barreto ARF, Freitas HC, Kok F, Rodrigues CL. New observations on minifascicular neuropathy with sex-dependent gonadal dysgenesis: a case series with nerve ultrasound assessment. Neurol Sci 2023; 44:3691-3696. [PMID: 37140833 DOI: 10.1007/s10072-023-06792-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 04/02/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Gonadal dysgenesis with minifascicular neuropathy (GDMN) is a rare autosomal recessive condition associated with biallelic DHH pathogenic variants. In 46, XY individuals, this disorder is characterized by an association of minifascicular neuropathy (MFN) and gonadal dysgenesis, while in 46, XX subjects only the neuropathic phenotype is present. Very few patients with GDMN have been reported so far. We describe four patients with MFN due to a novel DHH likely pathogenic homozygous variant and the results of nerve ultrasound assessment. METHODS This retrospective observational study included 4 individuals from 2 unrelated Brazilian families evaluated for severe peripheral neuropathy. Genetic diagnosis was performed with a peripheral neuropathy next-generation sequencing (NGS) panel based on whole exome sequencing focused analysis that included a control SRY probe to confirm genetic sex. Clinical characterization, nerve conduction velocity studies, and high-resolution ultrasound nerve evaluation were performed in all subjects. RESULTS Molecular analysis disclosed in all subjects the homozygous DHH variant p.(Leu335Pro). Patients had a striking phenotype, with marked trophic changes of extremities, sensory ataxia, and distal anesthesia due to a sensory-motor demyelinating polyneuropathy. One 46, XY phenotypically female individual had gonadal dysgenesis. High-resolution nerve ultrasound showed typical minifascicular formation and increased nerve area in at least one of the nerves assessed in all patients. CONCLUSION Gonadal dysgenesis with minifascicular neuropathy is a severe autosomal recessive neuropathy characterized by trophic alterations in limbs, sensory ataxia, and distal anesthesia. Nerve ultrasound studies are very suggestive of this condition and may help to avoid invasive nerve biopsies.
Collapse
Affiliation(s)
- Lara Albuquerque Brito
- Neuromuscular Unit of Neurology Department From Hospital Geral de Fortaleza, Ceará, Brazil
| | - Paulo Ribeiro Nóbrega
- Department of Neurology, Faculdade de Medicina, Universidade Federal Do Ceará, Fortaleza, Brazil.
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), São Paulo, Brazil.
| | - Daniel Aguiar Dias
- Department of Radiology, Faculdade de Medicina, Universidade Federal Do Ceará, Fortaleza, Brazil
| | | | - Hermany Capistrano Freitas
- Neuromuscular Unit of Neurology Department From Hospital Geral de Fortaleza, Ceará, Brazil
- Clinical Neurophysiology of Neurology Department From Hospital Geral de Fortaleza, Ceará, Brazil
| | - Fernando Kok
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), São Paulo, Brazil
- Mendelics Genomic Analysis, Sao Paulo, Brazil
| | - Cleonisio Leite Rodrigues
- Neuromuscular Unit of Neurology Department From Hospital Geral de Fortaleza, Ceará, Brazil
- Clinical Neurophysiology of Neurology Department From Hospital Geral de Fortaleza, Ceará, Brazil
| |
Collapse
|
3
|
Norris AM, Appu AB, Johnson CD, Zhou LY, McKellar DW, Renault MA, Hammers D, Cosgrove BD, Kopinke D. Hedgehog signaling via its ligand DHH acts as cell fate determinant during skeletal muscle regeneration. Nat Commun 2023; 14:3766. [PMID: 37355632 PMCID: PMC10290686 DOI: 10.1038/s41467-023-39506-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 06/16/2023] [Indexed: 06/26/2023] Open
Abstract
Successful muscle regeneration relies on the interplay of multiple cell populations. However, the signals required for this coordinated intercellular crosstalk remain largely unknown. Here, we describe how the Hedgehog (Hh) signaling pathway controls the fate of fibro/adipogenic progenitors (FAPs), the cellular origin of intramuscular fat (IMAT) and fibrotic scar tissue. Using conditional mutagenesis and pharmacological Hh modulators in vivo and in vitro, we identify DHH as the key ligand that acts as a potent adipogenic brake by preventing the adipogenic differentiation of FAPs. Hh signaling also impacts muscle regeneration, albeit indirectly through induction of myogenic factors in FAPs. Our results also indicate that ectopic and sustained Hh activation forces FAPs to adopt a fibrogenic fate resulting in widespread fibrosis. In this work, we reveal crucial post-developmental functions of Hh signaling in balancing tissue regeneration and fatty fibrosis. Moreover, they provide the exciting possibility that mis-regulation of the Hh pathway with age and disease could be a major driver of pathological IMAT formation.
Collapse
Affiliation(s)
- Alessandra M Norris
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Ambili Bai Appu
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Connor D Johnson
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Lylybell Y Zhou
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - David W McKellar
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Marie-Ange Renault
- Biology of Cardiovascular Diseases, INSERM, University of Bordeaux, Pessac, France
| | - David Hammers
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA
| | - Benjamin D Cosgrove
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Daniel Kopinke
- Department of Pharmacology and Therapeutics, Myology Institute, University of Florida, Gainesville, FL, USA.
| |
Collapse
|
4
|
Ferrucci L, Candia J, Ubaida-Mohien C, Lyaskov A, Banskota N, Leeuwenburgh C, Wohlgemuth S, Guralnik JM, Kaileh M, Zhang D, Sufit R, De S, Gorospe M, Munk R, Peterson CA, McDermott MM. Transcriptomic and Proteomic of Gastrocnemius Muscle in Peripheral Artery Disease. Circ Res 2023; 132:1428-1443. [PMID: 37154037 PMCID: PMC10213145 DOI: 10.1161/circresaha.122.322325] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 04/17/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Few effective therapies exist to improve lower extremity muscle pathology and mobility loss due to peripheral artery disease (PAD), in part because mechanisms associated with functional impairment remain unclear. METHODS To better understand mechanisms of muscle impairment in PAD, we performed in-depth transcriptomic and proteomic analyses on gastrocnemius muscle biopsies from 31 PAD participants (mean age, 69.9 years) and 29 age- and sex-matched non-PAD controls (mean age, 70.0 years) free of diabetes or limb-threatening ischemia. RESULTS Transcriptomic and proteomic analyses suggested activation of hypoxia-compensatory mechanisms in PAD muscle, including inflammation, fibrosis, apoptosis, angiogenesis, unfolded protein response, and nerve and muscle repair. Stoichiometric proportions of mitochondrial respiratory proteins were aberrant in PAD compared to non-PAD, suggesting that respiratory proteins not in complete functional units are not removed by mitophagy, likely contributing to abnormal mitochondrial activity. Supporting this hypothesis, greater mitochondrial respiratory protein abundance was significantly associated with greater complex II and complex IV respiratory activity in non-PAD but not in PAD. Rate-limiting glycolytic enzymes, such as hexokinase and pyruvate kinase, were less abundant in muscle of people with PAD compared with non-PAD participants, suggesting diminished glucose metabolism. CONCLUSIONS In PAD muscle, hypoxia induces accumulation of mitochondria respiratory proteins, reduced activity of rate-limiting glycolytic enzymes, and an enhanced integrated stress response that modulates protein translation. These mechanisms may serve as targets for disease modification.
Collapse
Affiliation(s)
- Luigi Ferrucci
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Julián Candia
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | | | - Alexey Lyaskov
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Nirad Banskota
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Christiaan Leeuwenburgh
- University of Florida, Institute on Aging, Department of Physiology and Aging, Gainesville, FL, USA
| | - Stephanie Wohlgemuth
- University of Florida, Institute on Aging, Department of Physiology and Aging, Gainesville, FL, USA
| | - Jack M. Guralnik
- University of Maryland School of Medicine, Department of Epidemiology and Public Health, Baltimore, MD, USA
| | - Mary Kaileh
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Dongxue Zhang
- Northwestern University Feinberg School of Medicine, Department of Neurology, Chicago, IL, USA
| | - Robert Sufit
- Northwestern University Feinberg School of Medicine, Department of Neurology, Chicago, IL, USA
| | - Supriyo De
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Myriam Gorospe
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Rachel Munk
- National Institute on Aging, Intramural Research Program, Baltimore, MD, USA
| | - Charlotte A. Peterson
- Center for Muscle Biology. College of Health Sciences, University of Kentucky, Lexington, KY, USA
| | - Mary M. McDermott
- Northwestern University Feinberg School of Medicine, Department of Medicine, Chicago, IL, USA
| |
Collapse
|
5
|
Foussard N, Rouault P, Cornuault L, Reynaud A, Buys ES, Chapouly C, Gadeau AP, Couffinhal T, Mohammedi K, Renault MA. Praliciguat Promotes Ischemic Leg Reperfusion in Leptin Receptor-Deficient Mice. Circ Res 2023; 132:34-48. [PMID: 36448444 DOI: 10.1161/circresaha.122.322033] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
BACKGROUND Lower-limb peripheral artery disease is one of the major complications of diabetes. Peripheral artery disease is associated with poor limb and cardiovascular prognoses, along with a dramatic decrease in life expectancy. Despite major medical advances in the treatment of diabetes, a substantial therapeutic gap remains in the peripheral artery disease population. Praliciguat is an orally available sGC (soluble guanylate cyclase) stimulator that has been reported both preclinically and in early stage clinical trials to have favorable effects in metabolic and hemodynamic outcomes, suggesting that it may have a potential beneficial effect in peripheral artery disease. METHODS We evaluated the effect of praliciguat on hind limb ischemia recovery in a mouse model of type 2 diabetes. Hind limb ischemia was induced in leptin receptor-deficient (Leprdb/db) mice by ligation and excision of the left femoral artery. Praliciguat (10 mg/kg/day) was administered in the diet starting 3 days before surgery. RESULTS Twenty-eight days after surgery, ischemic foot perfusion and function parameters were better in praliciguat-treated mice than in vehicle controls. Improved ischemic foot perfusion was not associated with either improved traditional cardiovascular risk factors (ie, weight, glycemia) or increased angiogenesis. However, treatment with praliciguat significantly increased arteriole diameter, decreased ICAM1 (intercellular adhesion molecule 1) expression, and prevented the accumulation of oxidative proangiogenic and proinflammatory muscle fibers. While investigating the mechanism underlying the beneficial effects of praliciguat therapy, we found that praliciguat significantly downregulated Myh2 and Cxcl12 mRNA expression in cultured myoblasts and that conditioned medium form praliciguat-treated myoblast decreased ICAM1 mRNA expression in endothelial cells. These results suggest that praliciguat therapy may decrease ICAM1 expression in endothelial cells by downregulating Cxcl12 in myocytes. CONCLUSIONS Our results demonstrated that praliciguat promotes blood flow recovery in the ischemic muscle of mice with type 2 diabetes, at least in part by increasing arteriole diameter and by downregulating ICAM1 expression.
Collapse
Affiliation(s)
- Ninon Foussard
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Paul Rouault
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Lauriane Cornuault
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Annabel Reynaud
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | | | - Candice Chapouly
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Alain-Pierre Gadeau
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Thierry Couffinhal
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Kamel Mohammedi
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| | - Marie-Ange Renault
- Univ. Bordeaux, Inserm, Biology of Cardiovascular Diseases, Pessac, France (N.F., P.R., L.C., A.R., C.C., A.-P.G., T.C., K.M., M.-A.R.)
| |
Collapse
|
6
|
Pachernegg S, Georges E, Ayers K. The Desert Hedgehog Signalling Pathway in Human Gonadal Development and Differences of Sex Development. Sex Dev 2021; 16:98-111. [PMID: 34518472 DOI: 10.1159/000518308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/31/2021] [Indexed: 11/19/2022] Open
Abstract
While the Hedgehog signalling pathway is implicated in numerous developmental processes and maladies, variants in the Desert Hedgehog (DHH) ligand underlie a condition characterised by 46,XY gonadal dysgenesis with or without peripheral neuropathy. We discuss here the role and regulation of DHH and its signalling pathway in the developing gonads and examine the current understanding of how disruption to this pathway causes this difference of sex development (DSD) in humans.
Collapse
Affiliation(s)
- Svenja Pachernegg
- Reproductive Development Group, Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Elizabeth Georges
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Katie Ayers
- Reproductive Development Group, Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
7
|
Gu Y, Liu X, Liao L, Gao Y, Shi Y, Ni J, He G. Relationship between lipid metabolism and Hedgehog signaling pathway. J Steroid Biochem Mol Biol 2021; 209:105825. [PMID: 33529733 DOI: 10.1016/j.jsbmb.2021.105825] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/28/2020] [Accepted: 01/13/2021] [Indexed: 02/08/2023]
Abstract
The Hedgehog (Hh) signaling pathway is highly conserved signaling pathway in cells. Steroids was found to play a vital role in Hh signaling pathway and aberrant Hh signaling was found to lead a series of disease correlate with abnormal lipid metabolism. This paper aimed to elucidate the relationship between lipid metabolism and Hedgehog signaling pathway.
Collapse
Affiliation(s)
- Yuan Gu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Hunan 410011, PR China
| | - Xiaochen Liu
- University of Toledo Medical Center 3000 Arlington Ave. Toledo, OH 43614, USA
| | - Lele Liao
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Hunan 410011, PR China
| | - Yongquan Gao
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Hunan 410011, PR China
| | - Yu Shi
- West China School of Stomatology, Sichuan University, Chengdu 610041, PR China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Jiangdong Ni
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Hunan 410011, PR China
| | - Guangxu He
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Hunan 410011, PR China.
| |
Collapse
|
8
|
Fleming I. Editorial on "Full-length dhh and N-terminal shh act as competitive antagonists to regulateangiogenesis and vascular permeability". Cardiovasc Res 2021; 117:2411-2413. [PMID: 33690797 DOI: 10.1093/cvr/cvab037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany.,German Center of Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt am Main, Germany
| |
Collapse
|
9
|
Kopinke D, Norris AM, Mukhopadhyay S. Developmental and regenerative paradigms of cilia regulated hedgehog signaling. Semin Cell Dev Biol 2021; 110:89-103. [PMID: 32540122 PMCID: PMC7736055 DOI: 10.1016/j.semcdb.2020.05.029] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 01/08/2023]
Abstract
Primary cilia are immotile appendages that have evolved to receive and interpret a variety of different extracellular cues. Cilia play crucial roles in intercellular communication during development and defects in cilia affect multiple tissues accounting for a heterogeneous group of human diseases called ciliopathies. The Hedgehog (Hh) signaling pathway is one of these cues and displays a unique and symbiotic relationship with cilia. Not only does Hh signaling require cilia for its function but the majority of the Hh signaling machinery is physically located within the cilium-centrosome complex. More specifically, cilia are required for both repressing and activating Hh signaling by modifying bifunctional Gli transcription factors into repressors or activators. Defects in balancing, interpreting or establishing these repressor/activator gradients in Hh signaling either require cilia or phenocopy disruption of cilia. Here, we will summarize the current knowledge on how spatiotemporal control of the molecular machinery of the cilium allows for a tight control of basal repression and activation states of the Hh pathway. We will then discuss several paradigms on how cilia influence Hh pathway activity in tissue morphogenesis during development. Last, we will touch on how cilia and Hh signaling are being reactivated and repurposed during adult tissue regeneration. More specifically, we will focus on mesenchymal stem cells within the connective tissue and discuss the similarities and differences of how cilia and ciliary Hh signaling control the formation of fibrotic scar and adipose tissue during fatty fibrosis of several tissues.
Collapse
Affiliation(s)
- Daniel Kopinke
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32610, USA.
| | - Alessandra M Norris
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32610, USA
| | - Saikat Mukhopadhyay
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| |
Collapse
|
10
|
Hedgehog signaling promotes endoneurial fibroblast migration and Vegf-A expression following facial nerve injury. Brain Res 2020; 1751:147204. [PMID: 33189691 DOI: 10.1016/j.brainres.2020.147204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/03/2020] [Accepted: 11/07/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Peripheral nerve injuries are a common clinical problem which may result in permanent loss of motor or sensory function. A better understanding of the signaling pathways that lead to successful nerve regeneration may help in discovering new therapeutic targets. The Hedgehog (Hh) signaling pathway plays significant roles in nerve development and regeneration. In a mouse model of facial nerve injury, Hedgehog-responsive fibroblasts increase in number both at the site of injury and within the distal nerve. However, the role of these cells in facial nerve regeneration is not fully understood. We hypothesize that the Hh pathway plays an angiogenic and pro-migratory role following facial nerve injury. METHODS Hedgehog pathway modulators were applied to murine endoneurial fibroblasts isolated from the murine facial nerve. The impact of pathway modulation on endoneurial fibroblast migration and cell proliferation was assessed. Gene expression changes of known Hedgehog target genes and the key angiogenic factor Vegf-A were determined by qPCR. In vivo, mice were treated with pathway agonist (SAG21k) and injured facial nerve specimens were analyzed via immunofluorescence and in situ hybridization. RESULTS Hedgehog pathway activation in facial nerve fibroblasts via SAG21k treatment increases Gli1 and Ptch1 expression, the rate of cellular migration, and Vegf-A expression in vitro. In vivo, expression of Gli1 and Vegf-A expression appears to increase after injury, particularly at the site of nerve injury and the distal nerve, as detected by immunofluorescence and in situ hybridization. Additionally, Gli1 transcripts co-localize with Vegf-A following transection injury to the facial nerve. DISCUSSION These findings describe an angiogenic and pro-migratory role for the Hedgehog pathway mediated through effects on nerve fibroblasts. Given the critical role of Vegf-A in nerve regeneration, modulation of this pathway may represent a potential therapeutic target to improve facial nerve regeneration following injury.
Collapse
|
11
|
Zahreddine R, Davezac M, Smirnova N, Buscato M, Lhuillier E, Lupieri A, Solinhac R, Vinel A, Vessieres E, Henrion D, Renault MA, Gadeau AP, Flouriot G, Lenfant F, Laffargue M, Métivier R, Arnal JF, Fontaine C. Tamoxifen Accelerates Endothelial Healing by Targeting ERα in Smooth Muscle Cells. Circ Res 2020; 127:1473-1487. [PMID: 33012251 DOI: 10.1161/circresaha.120.317062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
RATIONALE Tamoxifen prevents the recurrence of breast cancer and is also beneficial against bone demineralization and arterial diseases. It acts as an ER (estrogen receptor) α antagonist in ER-positive breast cancers, whereas it mimics the protective action of 17β-estradiol in other tissues such as arteries. However, the mechanisms of these tissue-specific actions remain unclear. OBJECTIVE Here, we tested whether tamoxifen is able to accelerate endothelial healing and analyzed the underlying mechanisms. METHODS AND RESULTS Using 3 complementary mouse models of carotid artery injury, we demonstrated that both tamoxifen and estradiol accelerated endothelial healing, but only tamoxifen required the presence of the underlying medial smooth muscle cells. Chronic treatment with 17β-estradiol and tamoxifen elicited differential gene expression profiles in the carotid artery. The use of transgenic mouse models targeting either whole ERα in a cell-specific manner or ERα subfunctions (membrane/extranuclear versus genomic/transcriptional) demonstrated that 17β-estradiol-induced acceleration of endothelial healing is mediated by membrane ERα in endothelial cells, while the effect of tamoxifen is mediated by the nuclear actions of ERα in smooth muscle cells. CONCLUSIONS Whereas tamoxifen acts as an antiestrogen and ERα antagonist in breast cancer but also on the membrane ERα of endothelial cells, it accelerates endothelial healing through activation of nuclear ERα in smooth muscle cells, inviting to revisit the mechanisms of action of selective modulation of ERα.
Collapse
Affiliation(s)
- Rana Zahreddine
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Morgane Davezac
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Natalia Smirnova
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Melissa Buscato
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Emeline Lhuillier
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Adrien Lupieri
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Romain Solinhac
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Alexia Vinel
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Emilie Vessieres
- MITOVASC Institute, CARFI facility, INSERM U1083, UMR CNRS 6015, University of Angers, France (E.V., D.H.)
| | - Daniel Henrion
- MITOVASC Institute, CARFI facility, INSERM U1083, UMR CNRS 6015, University of Angers, France (E.V., D.H.)
| | - Marie-Ange Renault
- University of Bordeaux, INSERM, Biology of Cardiovascular Diseases, UMR 1034, Pessac, France (M.-A.R., A.-P.G.)
| | - Alain-Pierre Gadeau
- University of Bordeaux, INSERM, Biology of Cardiovascular Diseases, UMR 1034, Pessac, France (M.-A.R., A.-P.G.)
| | - Gilles Flouriot
- University of Rennes, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail) - INSERM, UMR_S 1085, France (G.F.)
| | - Françoise Lenfant
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Muriel Laffargue
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Raphaël Métivier
- CNRS, Univeristy of Rennes, IGDR (Institut de Génétique De Rennes) - UMR 6290, France (R.M.)
| | - Jean-François Arnal
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| | - Coralie Fontaine
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U 1048, University of Toulouse 3, France (R.Z., M.D., N.S., M.B., E.L., A.L., R.S., A.V., F.L., M.L., J.-F.A., C.F.)
| |
Collapse
|
12
|
Manshaei R, Merico D, Reuter MS, Engchuan W, Mojarad BA, Chaturvedi R, Heung T, Pellecchia G, Zarrei M, Nalpathamkalam T, Khan R, Okello JBA, Liston E, Curtis M, Yuen RKC, Marshall CR, Jobling RK, Oechslin E, Wald RM, Silversides CK, Scherer SW, Kim RH, Bassett AS. Genes and Pathways Implicated in Tetralogy of Fallot Revealed by Ultra-Rare Variant Burden Analysis in 231 Genome Sequences. Front Genet 2020; 11:957. [PMID: 33110418 PMCID: PMC7522597 DOI: 10.3389/fgene.2020.00957] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/30/2020] [Indexed: 12/19/2022] Open
Abstract
Recent genome-wide studies of rare genetic variants have begun to implicate novel mechanisms for tetralogy of Fallot (TOF), a severe congenital heart defect (CHD). To provide statistical support for case-only data without parental genomes, we re-analyzed genome sequences of 231 individuals with TOF (n = 175) or related CHD. We adapted a burden test originally developed for de novo variants to assess ultra-rare variant burden in individual genes, and in gene-sets corresponding to functional pathways and mouse phenotypes, accounting for highly correlated gene-sets and for multiple testing. For truncating variants, the gene burden test confirmed significant burden in FLT4 (Bonferroni corrected p-value < 0.01). For missense variants, burden in NOTCH1 achieved genome-wide significance only when restricted to constrained genes (i.e., under negative selection, Bonferroni corrected p-value = 0.004), and showed enrichment for variants affecting the extracellular domain, especially those disrupting cysteine residues forming disulfide bonds (OR = 39.8 vs. gnomAD). Individuals with NOTCH1 ultra-rare missense variants, all with TOF, were enriched for positive family history of CHD. Other genes not previously implicated in CHD had more modest statistical support in gene burden tests. Gene-set burden tests for truncating variants identified a cluster of pathways corresponding to VEGF signaling (FDR = 0%), and of mouse phenotypes corresponding to abnormal vasculature (FDR = 0.8%); these suggested additional candidate genes not previously identified (e.g., WNT5A and ZFAND5). Results for the most promising genes were driven by the TOF subset of the cohort. The findings support the importance of ultra-rare variants disrupting genes involved in VEGF and NOTCH signaling in the genetic architecture of TOF, accounting for 11–14% of individuals in the TOF cohort. These proof-of-principle data indicate that this statistical methodology could assist in analyzing case-only sequencing data in which ultra-rare variants, whether de novo or inherited, contribute to the genetic etiopathogenesis of a complex disorder.
Collapse
Affiliation(s)
- Roozbeh Manshaei
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada
| | - Daniele Merico
- Deep Genomics Inc., Toronto, ON, Canada.,The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Miriam S Reuter
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada.,The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Worrawat Engchuan
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Bahareh A Mojarad
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Rajiv Chaturvedi
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada.,Labatt Heart Centre, Division of Cardiology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Tracy Heung
- Clinical Genetics Research Program, Centre for Addiction and Mental Health, Toronto, ON, Canada.,The Dalglish Family 22q Clinic, University Health Network, Toronto, ON, Canada
| | - Giovanna Pellecchia
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Mehdi Zarrei
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada.,Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Thomas Nalpathamkalam
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Reem Khan
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada
| | - John B A Okello
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada
| | - Eriskay Liston
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada
| | - Meredith Curtis
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada
| | - Ryan K C Yuen
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada.,Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Christian R Marshall
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada.,Genome Diagnostics, Department of Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, ON, Canada.,Centre for Genetic Medicine, The Hospital for Sick Children, Toronto, ON, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Rebekah K Jobling
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada.,Genome Diagnostics, Department of Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, ON, Canada
| | - Erwin Oechslin
- Division of Cardiology, Toronto Congenital Cardiac Centre for Adults at the Peter Munk Cardiac Centre, Department of Medicine, University Health Network, Toronto, ON, Canada
| | - Rachel M Wald
- Labatt Heart Centre, Division of Cardiology, The Hospital for Sick Children, Toronto, ON, Canada.,Division of Cardiology, Toronto Congenital Cardiac Centre for Adults at the Peter Munk Cardiac Centre, Department of Medicine, University Health Network, Toronto, ON, Canada
| | - Candice K Silversides
- Division of Cardiology, Toronto Congenital Cardiac Centre for Adults at the Peter Munk Cardiac Centre, Department of Medicine, University Health Network, Toronto, ON, Canada
| | - Stephen W Scherer
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada.,Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.,Centre for Genetic Medicine, The Hospital for Sick Children, Toronto, ON, Canada
| | - Raymond H Kim
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, ON, Canada.,Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, ON, Canada.,Fred A. Litwin Family Centre in Genetic Medicine, University Health Network, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Anne S Bassett
- Clinical Genetics Research Program, Centre for Addiction and Mental Health, Toronto, ON, Canada.,The Dalglish Family 22q Clinic, University Health Network, Toronto, ON, Canada.,Division of Cardiology, Toronto Congenital Cardiac Centre for Adults at the Peter Munk Cardiac Centre, Department of Medicine, University Health Network, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Department of Mental Health, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| |
Collapse
|
13
|
Giarretta I, Gaetani E, Bigossi M, Tondi P, Asahara T, Pola R. The Hedgehog Signaling Pathway in Ischemic Tissues. Int J Mol Sci 2019; 20:ijms20215270. [PMID: 31652910 PMCID: PMC6862352 DOI: 10.3390/ijms20215270] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 10/22/2019] [Indexed: 12/19/2022] Open
Abstract
Hedgehog (Hh) proteins are prototypical morphogens known to regulate epithelial/mesenchymal interactions during embryonic development. In addition to its pivotal role in embryogenesis, the Hh signaling pathway may be recapitulated in post-natal life in a number of physiological and pathological conditions, including ischemia. This review highlights the involvement of Hh signaling in ischemic tissue regeneration and angiogenesis, with particular attention to the heart, the brain, and the skeletal muscle. Updated information on the potential role of the Hh pathway as a therapeutic target in the ischemic condition is also presented.
Collapse
Affiliation(s)
- Igor Giarretta
- Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Eleonora Gaetani
- Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Margherita Bigossi
- Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Paolo Tondi
- Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Takayuki Asahara
- Department of Regenerative Medicine Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
| | - Roberto Pola
- Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| |
Collapse
|
14
|
Caradu C, Couffinhal T, Chapouly C, Guimbal S, Hollier PL, Ducasse E, Bura-Rivière A, Dubois M, Gadeau AP, Renault MA. Restoring Endothelial Function by Targeting Desert Hedgehog Downstream of Klf2 Improves Critical Limb Ischemia in Adults. Circ Res 2019; 123:1053-1065. [PMID: 30355159 DOI: 10.1161/circresaha.118.313177] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
RATIONALE Klf (kruppel-like factor) 2 is critical to establish and maintain endothelial integrity. OBJECTIVE Therefore, determining upstream and downstream mediators of Klf2 would lead to alternative therapeutic targets in cardiovascular disease management. METHODS AND RESULTS Here we identify Dhh (desert hedgehog) as a downstream effector of Klf2, whose expression in endothelial cells (ECs) is upregulated by shear stress and decreased by inflammatory cytokines. Consequently, we show that Dhh knockdown in ECs promotes endothelial permeability and EC activation and that Dhh agonist prevents TNF-α (tumor necrosis factor alpha) or glucose-induced EC dysfunction. Moreover, we demonstrate that human critical limb ischemia, a pathological condition linked to diabetes mellitus and inflammation, is associated to major EC dysfunction. By recreating a complex model of critical limb ischemia in diabetic mice, we found that Dhh-signaling agonist significantly improved EC function without promoting angiogenesis, which subsequently improved muscle perfusion. CONCLUSION Restoring EC function leads to significant critical limb ischemia recovery. Dhh appears to be a promising target, downstream of Klf2, to prevent the endothelial dysfunction involved in ischemic vascular diseases.
Collapse
Affiliation(s)
- Caroline Caradu
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | - Thierry Couffinhal
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | - Candice Chapouly
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | - Sarah Guimbal
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | - Pierre-Louis Hollier
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | - Eric Ducasse
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | | | - Mathilde Dubois
- Inserm U1045, Centre de recherche Cardio-thoracique, University of Bordeaux, France (M.D.)
| | - Alain-Pierre Gadeau
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| | - Marie-Ange Renault
- From the Inserm U1034, Biology of Cardiovascular Diseases, CHU de Bordeaux, Pessac, France (C. Caradu, T.C., C. Chapouly, S.G., P.-L.H., E.D., A.-P.G., M.-A.R.)
| |
Collapse
|
15
|
Caradu C, Guy A, James C, Reynaud A, Gadeau AP, Renault MA. Endogenous Sonic Hedgehog limits inflammation and angiogenesis in the ischaemic skeletal muscle of mice. Cardiovasc Res 2019; 114:759-770. [PMID: 29365079 DOI: 10.1093/cvr/cvy017] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 01/19/2018] [Indexed: 12/23/2022] Open
Abstract
Aims Hedgehog (Hh) signalling has been shown to be re-activated in ischaemic tissues and participate in ischaemia-induced angiogenesis. Sonic Hedgehog (Shh) is upregulated by more than 80-fold in the ischaemic skeletal muscle, however its specific role in ischaemia-induced angiogenesis has not yet been fully investigated. The purpose of the present study was to investigate the role of endogenous Shh in ischaemia-induced angiogenesis. Methods and results To this aim, we used inducible Shh knock-out (KO) mice and unexpectedly found that capillary density was significantly increased in re-generating muscle of Shh deficient mice 5 days after hind limb ischaemia was induced, demonstrating that endogenous Shh does not promote angiogenesis but more likely limits it. Myosin and MyoD expression were equivalent in Shh deficient mice and control mice, indicating that endogenous Shh is not required for ischaemia-induced myogenesis. Additionally, we observed a significant increase in macrophage infiltration in the ischaemic muscle of Shh deficient mice. Our data indicate that this was due to an increase in chemokine expression by myoblasts in the setting of impaired Hh signalling, using tissue specific Smoothened conditional KO mice. The increased macrophage infiltration in mice deficient for Hh signalling in myocytes was associated with increased VEGFA expression and a transiently increased angiogenesis, demonstrating that Shh limits inflammation and angiogenesis indirectly by signalling to myocytes. Conclusion Although ectopic administration of Shh has previously been shown to promote ischaemia-induced angiogenesis, the present study reveals that endogenous Shh does not promote ischaemia-induced angiogenesis. On the contrary, the absence of Shh leads to aberrant ischaemic tissue inflammation and a transiently increased angiogenesis.
Collapse
Affiliation(s)
- Caroline Caradu
- Biology of Cardiovascular Diseases, Univ. Bordeaux, Inserm, CHU de Bordeaux, F-33604 Pessac, France
| | - Alexandre Guy
- Biology of Cardiovascular Diseases, Univ. Bordeaux, Inserm, CHU de Bordeaux, F-33604 Pessac, France
| | - Chloé James
- Biology of Cardiovascular Diseases, Univ. Bordeaux, Inserm, CHU de Bordeaux, F-33604 Pessac, France
| | - Annabel Reynaud
- Biology of Cardiovascular Diseases, Univ. Bordeaux, Inserm, CHU de Bordeaux, F-33604 Pessac, France
| | - Alain-Pierre Gadeau
- Biology of Cardiovascular Diseases, Univ. Bordeaux, Inserm, CHU de Bordeaux, F-33604 Pessac, France
| | - Marie-Ange Renault
- Biology of Cardiovascular Diseases, Univ. Bordeaux, Inserm, CHU de Bordeaux, F-33604 Pessac, France
| |
Collapse
|
16
|
Role of Hedgehog Signaling in Vasculature Development, Differentiation, and Maintenance. Int J Mol Sci 2019; 20:ijms20123076. [PMID: 31238510 PMCID: PMC6627637 DOI: 10.3390/ijms20123076] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 06/17/2019] [Accepted: 06/20/2019] [Indexed: 12/16/2022] Open
Abstract
The role of Hedgehog (Hh) signaling in vascular biology has first been highlighted in embryos by Pepicelli et al. in 1998 and Rowitch et al. in 1999. Since then, the proangiogenic role of the Hh ligands has been confirmed in adults, especially under pathologic conditions. More recently, the Hh signaling has been proposed to improve vascular integrity especially at the blood–brain barrier (BBB). However, molecular and cellular mechanisms underlying the role of the Hh signaling in vascular biology remain poorly understood and conflicting results have been reported. As a matter of fact, in several settings, it is currently not clear whether Hh ligands promote vessel integrity and quiescence or destabilize vessels to promote angiogenesis. The present review relates the current knowledge regarding the role of the Hh signaling in vasculature development, maturation and maintenance, discusses the underlying proposed mechanisms and highlights controversial data which may serve as a guideline for future research. Most importantly, fully understanding such mechanisms is critical for the development of safe and efficient therapies to target the Hh signaling in both cancer and cardiovascular/cerebrovascular diseases.
Collapse
|
17
|
Aravani D, Morris GE, Jones PD, Tattersall HK, Karamanavi E, Kaiser MA, Kostogrys RB, Ghaderi Najafabadi M, Andrews SL, Nath M, Ye S, Stringer EJ, Samani NJ, Webb TR. HHIPL1, a Gene at the 14q32 Coronary Artery Disease Locus, Positively Regulates Hedgehog Signaling and Promotes Atherosclerosis. Circulation 2019; 140:500-513. [PMID: 31163988 PMCID: PMC6686954 DOI: 10.1161/circulationaha.119.041059] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Supplemental Digital Content is available in the text. Background: Genome-wide association studies have identified chromosome 14q32 as a locus for coronary artery disease. The disease-associated variants fall in a hitherto uncharacterized gene called HHIPL1 (hedgehog interacting protein-like 1), which encodes a sequence homolog of an antagonist of hedgehog signaling. The function of HHIPL1 and its role in atherosclerosis are unknown. Methods: HHIPL1 cellular localization, interaction with sonic hedgehog (SHH), and influence on hedgehog signaling were tested. HHIPL1 expression was measured in coronary artery disease–relevant human cells, and protein localization was assessed in wild-type and Apoe−/− (apolipoprotein E deficient) mice. Human aortic smooth muscle cell phenotypes and hedgehog signaling were investigated after gene knockdown. Hhipl1−/− mice were generated and aortic smooth muscle cells collected for phenotypic analysis and assessment of hedgehog signaling activity. Hhipl1−/− mice were bred onto both the Apoe−/− and Ldlr−/− (low-density lipoprotein receptor deficient) knockout strains, and the extent of atherosclerosis was quantified after 12 weeks of high-fat diet. Cellular composition and collagen content of aortic plaques were assessed by immunohistochemistry. Results: In vitro analyses revealed that HHIPL1 is a secreted protein that interacts with SHH and increases hedgehog signaling activity. HHIPL1 expression was detected in human smooth muscle cells and in smooth muscle within atherosclerotic plaques of Apoe−/− mice. The expression of Hhipl1 increased with disease progression in aortic roots of Apoe−/− mice. Proliferation and migration were reduced in Hhipl1 knockout mouse and HHIPL1 knockdown aortic smooth muscle cells, and hedgehog signaling was decreased in HHIPL1-deficient cells. Hhipl1 knockout caused a reduction of >50% in atherosclerosis burden on both Apoe−/− and Ldlr−/− knockout backgrounds, and lesions were characterized by reduced smooth muscle cell content. Conclusions: HHIPL1 is a secreted proatherogenic protein that enhances hedgehog signaling and regulates smooth muscle cell proliferation and migration. Inhibition of HHIPL1 protein function might offer a novel therapeutic strategy for coronary artery disease.
Collapse
Affiliation(s)
- Dimitra Aravani
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Gavin E Morris
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Peter D Jones
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Helena K Tattersall
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Elisavet Karamanavi
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Michael A Kaiser
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Renata B Kostogrys
- Department of Human Nutrition, Faculty of Food Technology, University of Agriculture in Kraków, Poland (R.B.K)
| | - Maryam Ghaderi Najafabadi
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Sarah L Andrews
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Mintu Nath
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Shu Ye
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Emma J Stringer
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| | - Tom R Webb
- Department of Cardiovascular Sciences, University of Leicester and National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.A., G.E.M., P.D.J., H.K.T., E.K., M.A.K., M.G.N., S.L.A., M.N., S.Y., E.J.S., N.J.S., T.R.W.)
| |
Collapse
|
18
|
Kilani B, Gourdou-Latyszenok V, Guy A, Bats ML, Peghaire C, Parrens M, Renault MA, Duplàa C, Villeval JL, Rautou PE, Couffinhal T, James C. Comparison of endothelial promoter efficiency and specificity in mice reveals a subset of Pdgfb-positive hematopoietic cells. J Thromb Haemost 2019; 17:827-840. [PMID: 30801958 DOI: 10.1111/jth.14417] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Indexed: 11/30/2022]
Abstract
Essentials To reliably study the respective roles of blood and endothelial cells in hemostasis, mouse models with a strong and specific endothelial expression of the Cre recombinase are needed. Using mT/mG reporter mice and conditional JAK2V617F/WT mice, we compared Pdgfb-iCreERT2 and Cdh5(PAC)-CreERT2 with well-characterized Tie2-Cre mice. Comparison of recombination efficiency and specificity towards blood lineage reveals major differences between endothelial transgenic mice. Cre-mediated recombination occurs in a small number of adult hematopoietic stem cells in Pdgfb-iCreERT2;JAK2V617F/WT transgenic mice. SUMMARY: Background The vessel wall, and particularly blood endothelial cells (BECs), are intensively studied to better understand hemostasis and target thrombosis. To understand the specific role of BECs, it is important to have mouse models that allow specific and homogeneous expression of genes of interest in all BEC beds without concomitant expression in blood cells. Inducible Pdgfb-iCreERT2 and Cdh5(PAC)-CreERT2 transgenic mice are widely used for BEC targeting. However, issues remain in terms of recombination efficiency and specificity regarding hematopoietic cells. Objectives To determine which mouse model to choose when strong expression of a transgene is required in adult BECs from various organs, without concomitant expression in hematopoietic cells. Methods Using mT/mG reporter mice to measure recombination efficiency and conditional JAK2V617F/WT mice to assess specificity regarding hematopoietic cells, we compared Pdgfb-iCreERT2 and Cdh5(PAC)-CreERT2 with well-characterized Tie2-Cre mice. Results Adult Cdh5(PAC)-CreERT2 mice are endothelial specific but require a dose of 10 mg of tamoxifen to allow constant Cre expression. Pdgfb-iCreERT2 mice injected with 5 mg of tamoxifen are appropriate for most endothelial research fields except liver studies, as hepatic sinusoid ECs are not recombined. Surprisingly, 2 months after induction of Cre-mediated recombination, all Pdgfb-iCreERT2;JAK2V617F/WT mice developed a myeloproliferative neoplasm that is related to the presence of JAK2V617F in hematopoietic cells, showing for the first time that Cre-mediated recombination occurs in a small number of adult hematopoietic stem cells in Pdgfb-iCreERT2 transgenic mice. Conclusion This study provides useful guidelines for choosing the best mouse line to study the role of BECs in hemostasis and thrombosis.
Collapse
Affiliation(s)
- Badr Kilani
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
| | | | - Alexandre Guy
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
| | - Marie-Lise Bats
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
| | - Claire Peghaire
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
| | - Marie Parrens
- CHU de Bordeaux, Laboratoire d'Anatomopathologie, Pessac, F-33600, France
| | - Marie-Ange Renault
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
| | - Cecile Duplàa
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
| | | | - Pierre-Emmanuel Rautou
- Service d'Hépatologie, Hôpital Beaujon, Assistance Publique-Hôpitaux de Paris, Clichy, France
| | - Thierry Couffinhal
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
- CHU de Bordeaux, service des Maladies Cardiaques et Vasculaires, Pessac, F-33600, France
| | - Chloe James
- University of Bordeaux, UMR 1034, INSERM, Biology of Cardiovascular Diseases, Pessac, F-33600, France
- CHU de Bordeaux, Laboratoire d'Hématologie, F-33600, Pessac, France
| |
Collapse
|
19
|
Wu S, Han M, Zhang C. Overexpression of microRNA-186 inhibits angiogenesis in retinoblastoma via the Hedgehog signaling pathway by targeting ATAD2. J Cell Physiol 2019; 234:19059-19072. [PMID: 30993715 DOI: 10.1002/jcp.28545] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/27/2019] [Accepted: 03/06/2019] [Indexed: 12/13/2022]
Abstract
Retinoblastoma (RB) represents an aggressive malignancy in the eye during the period of infancy and childhood. We delineated the ability of microRNA-186 (miR-186) to influence viability, invasion, migration, angiogenesis, and apoptosis of RB via the Hedgehog signaling pathway by targeting AAA domain-containing protein 2 (ATAD2). The microarray-based analysis was adopted to identify differentially expressed genes (DEGs) related to RB. Subsequently, RB cells were treated with miR-186 mimic, miR-186 inhibitor, or si-ATAD2. The expression of miR-186, ATAD2, Hedgehog signaling pathway-related genes were evaluated, and the target relationship between miR-186 and ATAD2 was verified. Finally, cell proliferation, invasion, migration, apoptosis, and angiogenesis were assessed. ATAD2 was identified as a DEG and modulated by miR-186. Moreover, we revealed that ATAD2 was highly expressed, whereas miR-186 was lowly expressed, and the Hedgehog signaling pathway was activated in RB. Then, ATAD2 as a putative target of miR-186 was validated using a luciferase assay. miR-186 mimic or siRNA-ATAD2 in RB cells reduced cell viability, invasion, and migration coordinating with elevated apoptosis via impairing the Hedgehog signaling pathway, where repressed angiogenesis was observed. Overexpression of miR-186 attenuates RB via the inactivation of the Hedgehog signaling pathway by downregulating ATAD2.
Collapse
Affiliation(s)
- Shuai Wu
- Department of Orbital Disease & Ocular Plastic Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Mei Han
- Department of Strabismus & Pediatric Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Chao Zhang
- Department of Strabismus & Pediatric Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| |
Collapse
|
20
|
Monteiro Rodrigues L, Silva H, Ferreira H, Renault MA, Gadeau AP. Observations on the perfusion recovery of regenerative angiogenesis in an ischemic limb model under hyperoxia. Physiol Rep 2018; 6:e13736. [PMID: 29932507 PMCID: PMC6014455 DOI: 10.14814/phy2.13736] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 05/16/2018] [Accepted: 05/18/2018] [Indexed: 12/11/2022] Open
Abstract
This study combines two well‐known vascular research models, hyperoxia and hind limb ischemia, aiming to better characterize capacities of the hyperoxia challenge. We studied two groups of C57/BL6 male mice, a control (C) and a hind limb ischemia (HLI) group. Perfusion from both limbs was recorded in all animals by laser Doppler techniques under an oxygen (O2) saturated atmosphere, once for control and, during 35 days for the HLI group. We used a third set of normoxic animals for HLI morphometric control. The expected variability of responses was higher for the younger animals. In the HLI group, capillary density normalized at Day 21 as expected, but not microcirculatory physiology. In the operated limb, perfusion decreased dramatically following surgery (Day 4), as a slight reduction in the non‐operated limb was also noted. Consistently, the response to hyperoxia was an increased perfusion in the ischemic limb and decreased perfusion in the contralateral limb. Only at Day 35, both limbs exhibited similar flows, although noticeably lower than Day 0. These observations help to understand some of the functional variability attributed to the hyperoxia model, by showing (i) differences in the circulation of the limb pairs to readjust a new perfusion set‐point even after ischemia, an original finding implying that (ii) data from both limbs should be recorded when performing distal measurements in vivo. Our data demonstrate that the new vessels following HLI are not functionally normal, and this also affects the non‐operated limb. These findings confirm the discriminative capacities of the hyperoxia challenge and suggest its potential utility to study other pathologies with vascular impact.
Collapse
Affiliation(s)
- Luis Monteiro Rodrigues
- CBIOS - Universidade Lusófona's Research Center for Biosciences and Health Technologies, Lisboa, Portugal.,Pharmacology Science Department, Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal
| | - Henrique Silva
- CBIOS - Universidade Lusófona's Research Center for Biosciences and Health Technologies, Lisboa, Portugal.,Pharmacology Science Department, Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal
| | - Hugo Ferreira
- IBEB - Biophysics and Biomedical Engineering Institute, Universidade de Lisboa Faculty of Sciences, Lisboa, Portugal
| | - Marie-Ange Renault
- Biology of Cardiovascular Diseases, Universite Bordeaux Montaigne, Inserm, Pessac, France
| | - Alain-Pierre Gadeau
- Biology of Cardiovascular Diseases, Universite Bordeaux Montaigne, Inserm, Pessac, France
| |
Collapse
|
21
|
Schmidt CA, Amorese AJ, Ryan TE, Goldberg EJ, Tarpey MD, Green TD, Karnekar RR, Yamaguchi DJ, Spangenburg EE, McClung JM. Strain-Dependent Variation in Acute Ischemic Muscle Injury. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:1246-1262. [PMID: 29454751 DOI: 10.1016/j.ajpath.2018.01.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 12/15/2017] [Accepted: 01/11/2018] [Indexed: 12/19/2022]
Abstract
Limited efficacy of clinical interventions for peripheral arterial disease necessitates a better understanding of the environmental and genetic determinants of tissue pathology. Existing research has largely ignored the early skeletal muscle injury response during hind limb ischemia (HLI). We compared the hind limb muscle response, after 6 hours of ischemia, in two mouse strains that differ dramatically in their postischemic extended recovery: C57BL/6J and BALB/cJ. Perfusion, measured by laser Doppler and normalized to the control limb, differed only slightly between strains after HLI (<12% across all measures). Similar (<10%) effect sizes in lectin-perfused vessel area and no differences in tissue oxygen saturation measured by reflectance spectroscopy were also found. Muscles from both strains were functionally impaired after HLI, but greater muscle necrosis and loss of dystrophin-positive immunostaining were observed in BALB/cJ muscle compared with C57BL/6J. Muscle cell-specific dystrophin loss and reduced viability were also detected in additional models of ischemia that were independent of residual perfusion differences. Our results indicate that factors other than the completeness of ischemia alone (ie, background genetics) influence the magnitude of acute ischemic muscle injury. These findings may have implications for future development of therapeutic interventions for limb ischemia and for understanding the phasic etiology of chronic and acute ischemic muscle pathophysiology.
Collapse
Affiliation(s)
- Cameron A Schmidt
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Adam J Amorese
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Terence E Ryan
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Emma J Goldberg
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Michael D Tarpey
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Thomas D Green
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Reema R Karnekar
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Dean J Yamaguchi
- Department of Cardiovascular Sciences, East Carolina University, Greenville, North Carolina; Division of Vascular Surgery, East Carolina University, Greenville, North Carolina
| | - Espen E Spangenburg
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Joseph M McClung
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina; East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina; Department of Cardiovascular Sciences, East Carolina University, Greenville, North Carolina.
| |
Collapse
|
22
|
Ciliary Hedgehog Signaling Restricts Injury-Induced Adipogenesis. Cell 2017; 170:340-351.e12. [PMID: 28709001 DOI: 10.1016/j.cell.2017.06.035] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 03/20/2017] [Accepted: 06/22/2017] [Indexed: 12/28/2022]
Abstract
Injured skeletal muscle regenerates, but with age or in muscular dystrophies, muscle is replaced by fat. Upon injury, muscle-resident fibro/adipogenic progenitors (FAPs) proliferated and gave rise to adipocytes. These FAPs dynamically produced primary cilia, structures that transduce intercellular cues such as Hedgehog (Hh) signals. Genetically removing cilia from FAPs inhibited intramuscular adipogenesis, both after injury and in a mouse model of Duchenne muscular dystrophy. Blocking FAP ciliation also enhanced myofiber regeneration after injury and reduced myofiber size decline in the muscular dystrophy model. Hh signaling through FAP cilia regulated the expression of TIMP3, a secreted metalloproteinase inhibitor, that inhibited MMP14 to block adipogenesis. A pharmacological mimetic of TIMP3 blocked the conversion of FAPs into adipocytes, pointing to a strategy to combat fatty degeneration of skeletal muscle. We conclude that ciliary Hh signaling by FAPs orchestrates the regenerative response to skeletal muscle injury.
Collapse
|
23
|
Diao YP, Cui FK, Yan S, Chen ZG, Lian LS, Guo LL, Li YJ. Nerve Growth Factor Promotes Angiogenesis and Skeletal Muscle Fiber Remodeling in a Murine Model of Hindlimb Ischemia. Chin Med J (Engl) 2017; 129:313-9. [PMID: 26831234 PMCID: PMC4799576 DOI: 10.4103/0366-6999.174496] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background: Therapeutic angiogenesis has been shown to promote blood vessel growth and improve tissue perfusion. Nerve growth factor (NGF) has been reported to play an important role in both physiological and pathological angiogenesis. This study aimed to investigate the effects of NGF on angiogenesis and skeletal muscle fiber remodeling in a murine model of hindlimb ischemia and study the relationship between NGF and vascular endothelial growth factor (VEGF) in angiogenesis. Methods: Twenty-four mice were randomly allocated to normal control group (n = 6), blank control group (n = 6), VEGF gene transfection group (n = 6), and NGF gene transfection group (n = 6). The model of left hindlimb ischemia model was established by ligating the femoral artery. VEGF165 plasmid (125 μg) and NGF plasmid (125 μg) was injected into the ischemic gastrocnemius of mice from VEGF group and NGF group, respectively. Left hindlimb function and ischemic damage were assessed with terminal points at 21th day postischemia induction. The gastrocnemius of four groups was tested by hematoxylin-eosin staining, proliferating cell nuclear antigen and CD34 immunohistochemistry staining, and myosin ATPase staining. NGF and VEGF protein expression was detected by enzyme-linked immunosorbent assay. Results: On the 21th day after surgery, the functional assessment score and skeletal muscle atrophy degree of VEGF group and NGF group were significantly lower than those of normal control group and blank control group. The endothelial cell proliferation index and the capillary density of VEGF group and NGF group were significantly increased compared with normal control group and blank control group (P < 0.05). The NGF and VEGF protein expression of NGF group showed a significant rise when compared with blank control group (P < 0.05). Similarly, the VEGF protein expression of VEGF group was significantly higher than that of blank control group (P < 0.05), but there was no significant difference of the NGF protein expression between VEGF group and blank control group (P > 0.05). The type I skeletal muscle fiber proportion in gastrocnemius of NGF group and VEGF group was significantly higher than that of blank control group (P < 0.05). Conclusions: NGF transfection can promote NGF and VEGF protein expression which not only can induce angiogenesis but also induce type I muscle fiber expression in ischemic limbs.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yong-Jun Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| |
Collapse
|
24
|
Manetti F, Petricci E, Gabrielli A, Mann A, Faure H, Gorojankina T, Brasseur L, Hoch L, Ruat M, Taddei M. Design, synthesis and biological characterization of a new class of osteogenic (1H)-quinolone derivatives. Eur J Med Chem 2016; 121:747-757. [DOI: 10.1016/j.ejmech.2016.05.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/26/2016] [Accepted: 05/27/2016] [Indexed: 12/11/2022]
|
25
|
Cen Y, Liu J, Qin Y, Liu R, Wang H, Zhou Y, Wang S, Hu Z. Denervation in Femoral Artery-Ligated Hindlimbs Diminishes Ischemic Recovery Primarily via Impaired Arteriogenesis. PLoS One 2016; 11:e0154941. [PMID: 27175510 PMCID: PMC4866779 DOI: 10.1371/journal.pone.0154941] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 04/21/2016] [Indexed: 12/03/2022] Open
Abstract
Aims Multiple factors regulate arteriogenesis. Peripheral nerves play a crucial role in vascular remodeling, but the function of peripheral nerves during arteriogenesis is obscure. Our study investigated the contribution of denervation to arteriogenesis during post-ischemic recovery from hindlimb femoral artery ligation. Methods and Results Sprague-Dawley rats were randomly allocated into four groups of normal control (NC), hindlimb ischemia (HI), hindlimb ischemia with denervation (HID) and hindlimb simple denervation (HD). Hindlimb ischemic recovery was assessed by clinical assessment and tibialis anterior muscle remodeling on day 28 post-surgery. Blood flow was determined by laser Doppler imaging on day 0, 3, 7, 14 and 28 post-surgery. Collateral number of hindlimb was observed by angiography and gracilis muscles were tested by immunostaining on day 7 and 28 post-surgery. Angiogenesis was accessed by counting CD31 positive capillaries in tibialis anterior muscles on day 28 post-surgery. Group HID showed impaired ischemic recovery compared with the other 3 groups and impaired blood flow recovery compared with group HI on day 28 post-surgery. The collateral number and capillary density of group HID were lower than group HI. The collateral diameter of both group HID and group HI significantly increased compared with group NC. However, the lumen diameter was much narrower and the vessel wall was much thicker in group HID than group HI. We also demonstrated that the thickened neointima of collaterals in group HID comprised of smooth muscle cells and endothelial cells. Conclusions Denervation of the ligated femoral artery in the hindlimb impairs ischemic recovery via impaired perfusion. The possible mechanisms of impaired perfusion are lower collateral number, lower capillary density and most likely narrower lumen, which damage ischemic recovery. This study illustrates the crucial role of peripheral nerves in arteriogenesis using a model combined ischemia with denervation in hindlimb.
Collapse
Affiliation(s)
- Yinghuan Cen
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Junfeng Liu
- Department of Pathology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuansen Qin
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ruiming Liu
- Laboratory of Department of Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huijin Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yu Zhou
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shenming Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zuojun Hu
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- * E-mail:
| |
Collapse
|
26
|
Smythe G. Role of Growth Factors in Modulation of the Microvasculature in Adult Skeletal Muscle. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 900:161-83. [PMID: 27003400 DOI: 10.1007/978-3-319-27511-6_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Post-natal skeletal muscle is a highly plastic tissue that has the capacity to regenerate rapidly following injury, and to undergo significant modification in tissue mass (i.e. atrophy/hypertrophy) in response to global metabolic changes. These processes are reliant largely on soluble factors that directly modulate muscle regeneration and mass. However, skeletal muscle function also depends on an adequate blood supply. Thus muscle regeneration and changes in muscle mass, particularly hypertrophy, also demand rapid changes in the microvasculature. Recent evidence clearly demonstrates a critical role for soluble growth factors in the tight regulation of angiogenic expansion of the muscle microvasculature. Furthermore, exogenous modulation of these factors has the capacity to impact directly on angiogenesis and thus, indirectly, on muscle regeneration, growth and performance. This chapter reviews recent developments in understanding the role of growth factors in modulating the skeletal muscle microvasculature, and the potential therapeutic applications of exogenous angiogenic and anti-angiogenic mediators in promoting effective growth and regeneration, and ameliorating certain diseases, of skeletal muscle.
Collapse
Affiliation(s)
- Gayle Smythe
- Faculty of Science, Charles Sturt University, Albury, NSW, 789, 2640, Australia.
| |
Collapse
|
27
|
Chapouly C, Yao Q, Vandierdonck S, Larrieu-Lahargue F, Mariani JN, Gadeau AP, Renault MA. Impaired Hedgehog signalling-induced endothelial dysfunction is sufficient to induce neuropathy: implication in diabetes. Cardiovasc Res 2015; 109:217-27. [PMID: 26645982 DOI: 10.1093/cvr/cvv263] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 11/26/2015] [Indexed: 11/14/2022] Open
Abstract
AIMS Microangiopathy, i.e. endothelial dysfunction, has long been suggested to contribute to the development of diabetic neuropathy, although this has never been fully verified. In the present paper, we have identified the role of Hedgehog (Hh) signalling in endoneurial microvessel integrity and evaluated the impact of impaired Hh signalling in endothelial cells (ECs) on nerve function. METHODS AND RESULTS By using Desert Hedgehog (Dhh)-deficient mice, we have revealed, that in the absence of Dhh, endoneurial capillaries are abnormally dense and permeable. Furthermore, Smoothened (Smo) conditional KO mice clarified that this increased vessel permeability is specifically due to impaired Hh signalling in ECs and is associated with a down-regulation of Claudin5 (Cldn5). Moreover, impairment of Hh signalling in ECs was sufficient to induce hypoalgesia and neuropathic pain. Finally in Lepr(db/db) type 2 diabetic mice, the loss of Dhh expression observed in the nerve was shown to be associated with increased endoneurial capillary permeability and decreased Cldn5 expression. Conversely, systemic administration of the Smo agonist SAG increased Cldn5 expression, decreased endoneurial capillary permeability, and restored thermal algesia to diabetic mice, demonstrating that loss of Dhh expression is crucial in the development of diabetic neuropathy. CONCLUSION The present work demonstrates the critical role of Dhh in maintaining blood nerve barrier integrity and demonstrates for the first time that endothelial dysfunction is sufficient to induce neuropathy.
Collapse
Affiliation(s)
- Candice Chapouly
- Université de Bordeaux, Adaptation Cardiovasculaire à L'ischémie, U1034, Pessac F-33600, France INSERM, U1034, Adaptation Cardiovasculaire à L'ischémie, 1, Avenue de Magellan, Pessac F-33600, France CHU de Bordeaux, Pharmacie de L'hôpital Haut Lévêque, Pessac F-33600, France
| | - Qinyu Yao
- Université de Bordeaux, Adaptation Cardiovasculaire à L'ischémie, U1034, Pessac F-33600, France INSERM, U1034, Adaptation Cardiovasculaire à L'ischémie, 1, Avenue de Magellan, Pessac F-33600, France
| | - Soizic Vandierdonck
- Université de Bordeaux, Adaptation Cardiovasculaire à L'ischémie, U1034, Pessac F-33600, France INSERM, U1034, Adaptation Cardiovasculaire à L'ischémie, 1, Avenue de Magellan, Pessac F-33600, France CHU de Bordeaux, Pharmacie de L'hôpital Haut Lévêque, Pessac F-33600, France
| | - Frederic Larrieu-Lahargue
- Université de Bordeaux, Adaptation Cardiovasculaire à L'ischémie, U1034, Pessac F-33600, France INSERM, U1034, Adaptation Cardiovasculaire à L'ischémie, 1, Avenue de Magellan, Pessac F-33600, France
| | - John N Mariani
- Department of Neurology, Corinne Goldsmith Dickinson Center for Multiple Sclerosis, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Alain-Pierre Gadeau
- Université de Bordeaux, Adaptation Cardiovasculaire à L'ischémie, U1034, Pessac F-33600, France INSERM, U1034, Adaptation Cardiovasculaire à L'ischémie, 1, Avenue de Magellan, Pessac F-33600, France
| | - Marie-Ange Renault
- Université de Bordeaux, Adaptation Cardiovasculaire à L'ischémie, U1034, Pessac F-33600, France INSERM, U1034, Adaptation Cardiovasculaire à L'ischémie, 1, Avenue de Magellan, Pessac F-33600, France
| |
Collapse
|
28
|
Chen X, Jin Y, Hou X, Liu F, Wang Y. Sonic Hedgehog Signaling: Evidence for Its Protective Role in Endotoxin Induced Acute Lung Injury in Mouse Model. PLoS One 2015; 10:e0140886. [PMID: 26545089 PMCID: PMC4636314 DOI: 10.1371/journal.pone.0140886] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 09/30/2015] [Indexed: 12/24/2022] Open
Abstract
Objective To investigate the protective role of the sonic hedgehog (SHH) signaling associated with a lipopolysaccharide (LPS)-induced acute lung injury (ALI) in a mouse model. Methods Male BALB/c mice were randomly divided into four groups: control, LPS, LPS-cyclopamine group and cyclopamine group. ALI was induced by LPS ip injection (5 mg/kg). The sonic hedgehog inhibitor cyclopamine (50 mg/kg) was given to the LPS-cyclopamine group at 30 min after LPS injection as well as normal mice as control. Lung injury was observed histologically in hematoxylin and eosin (HE) stained tissue sections, semi-quantified by lung tissue injury score, and the lung tissue mass alteration was measured by wet to dry weight ratio (W/D). mRNA expression levels of TNF-α, SHH, Patched (PTC) and GLI1 in lung tissue were studied with real time quantitative PCR (RT-PCR), while the protein expression of SHH and GLI1 was determined by western blot analysis. Results Lung tissue injury score, thickness of alveolar septa, W/D, and TNF-α mRNA expression levels were significantly higher in the ALI mice than the normal mice (P<0.05). The mRNA expression levels of SHH, PTC, and GLI1 in the ALI mice were significantly higher at 12h and 24h after LPS injection, but not at the 6h time point. Protein production of SHH and GLI1 at 6h, 12h, and 24h in the lungs of ALI mice significantly increased, in a time-dependent manner, compared with that in normal mice. Cyclopamine alone has no effect on pathological changes in normal mice. Intervention with cyclopamine in ALI mice led to a reduction in mRNA levels of SHH, PTC, and GLI1 as well as SHH and GLI1 protein levels; meanwhile, the pathological injury scores of lung tissues, thickness of alveolar septa, W/D, and mRNA expression levels of TNF-α increased compared with mice receiving LPS only. Conclusion The SHH signaling pathway was activated in response to LPS-induced ALI, and up-regulation of SHH expression could alleviate lung injury and be involved in the repair of injured lung tissue.
Collapse
Affiliation(s)
- Xing Chen
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, The People’s Republic of China
| | - Yuting Jin
- Department of Pediatrics, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, The People’s Republic of China
| | - Xiaoming Hou
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, The People’s Republic of China
| | - Fengqin Liu
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, The People’s Republic of China
| | - Yulin Wang
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, The People’s Republic of China
- * E-mail:
| |
Collapse
|
29
|
Sweet L, Kang Y, Czisch C, Witek L, Shi Y, Smay J, Plant GW, Yang Y. Geometrical versus Random β-TCP Scaffolds: Exploring the Effects on Schwann Cell Growth and Behavior. PLoS One 2015; 10:e0139820. [PMID: 26444999 PMCID: PMC4596809 DOI: 10.1371/journal.pone.0139820] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 09/17/2015] [Indexed: 12/22/2022] Open
Abstract
Numerous studies have demonstrated that Schwann cells (SCs) play a role in nerve regeneration; however, their role in innervating a bioceramic scaffold for potential application in bone regeneration is still unknown. Here we report the cell growth and functional behavior of SCs on β-tricalcium phosphate (β-TCP) scaffolds arranged in 3D printed-lattice (P-β-TCP) and randomly-porous, template-casted (N-β-TCP) structures. Our results indicate that SCs proliferated well and expressed the phenotypic markers p75LNGFR and the S100-β subunit of SCs as well as displayed growth morphology on both scaffolds, but SCs showed spindle-shaped morphology with a significant degree of SCs alignment on the P-β-TCP scaffolds, seen to a lesser degree in the N-β-TCP scaffold. The gene expressions of nerve growth factor (β-ngf), neutrophin–3 (nt–3), platelet-derived growth factor (pdgf-bb), and vascular endothelial growth factor (vegf-a) were higher at day 7 than at day 14. While no significant differences in protein secretion were measured between these last two time points, the scaffolds promoted the protein secretion at day 3 compared to that on the cell culture plates. These results together imply that the β-TCP scaffolds can support SC cell growth and that the 3D-printed scaffold appeared to significantly promote the alignment of SCs along the struts. Further studies are needed to investigate the early and late stage relationship between gene expression and protein secretion of SCs on the scaffolds with refined characteristics, thus better exploring the potential of SCs to support vascularization and innervation in synthetic bone grafts.
Collapse
Affiliation(s)
- Lauren Sweet
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, United States of America
- Department of Biology, Stanford University, Stanford, California, United States of America
| | - Yunqing Kang
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, United States of America
- Department of Ocean and Mechanical Engineering, Florida Atlantic University, Boca Raton, Florida, United States of America
| | - Christopher Czisch
- Department of Neurosurgery, Stanford University, Stanford, California, United States of America
| | - Lukasz Witek
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma, United States of America
| | - Yang Shi
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma, United States of America
| | - Jim Smay
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma, United States of America
| | - Giles W. Plant
- Department of Neurosurgery, Stanford University, Stanford, California, United States of America
| | - Yunzhi Yang
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, United States of America
- Department of Materials Science and Engineering, Stanford University, Stanford, California, United States of America
- Department of Bioengineering, Stanford University, Stanford, California, United States of America
- * E-mail:
| |
Collapse
|
30
|
McClung JM, Reinardy JL, Mueller SB, McCord TJ, Kontos CD, Brown DA, Hussain SNA, Schmidt CA, Ryan TE, Green TD. Muscle cell derived angiopoietin-1 contributes to both myogenesis and angiogenesis in the ischemic environment. Front Physiol 2015; 6:161. [PMID: 26042050 PMCID: PMC4436568 DOI: 10.3389/fphys.2015.00161] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 05/04/2015] [Indexed: 12/13/2022] Open
Abstract
Recent strategies to treat peripheral arterial disease (PAD) have focused on stem cell based therapies, which are believed to result in local secretion of vascular growth factors. Little is known, however, about the role of ischemic endogenous cells in this context. We hypothesized that ischemic muscle cells (MC) are capable of secreting growth factors that act as potent effectors of the local cellular regenerative environment. Both muscle and endothelial cells (ECs) were subjected to experimental ischemia, and conditioned medium (CM) from each was collected and analyzed to assess myogenic and/or angiogenic potential. In muscle progenitors, mRNA expression of VEGF and its cognate receptors (Nrp1, Flt, Flk) was present and decreased during myotube formation in vitro, and EC CM or VEGF increased myoblast proliferation. Angiopoietin-1 (Ang-1), Tie1, and Tie2 mRNA increased during MC differentiation in vitro. Exogenous Ang-1 enhanced myogenic (MyoD and Myogenin) mRNA in differentiating myoblasts and increased myosin heavy chain protein. Myotube formation was enhanced by MC CM and inhibited by EC CM. Ang-1 protein was present in CM from MCs isolated from both the genetically ischemia-susceptible BALB/c and ischemia-resistant C57BL/6 mouse strains, and chimeric Tie2 receptor trapping in situ ablated Ang-1's myogenic effects in vitro. Ang-1 or MC CM enhanced myotube formation in a mixed isolate of muscle progenitors as well as a myoblast co-culture with pluripotent mesenchymal cells (10T1/2) and this effect was abrogated by viral expression of the extracellular domain of Tie2 (AdsTie2). Furthermore, mesh/tube formation by HUVECs was enhanced by Ang-1 or MC CM and abrogated by Tie2 chimeric receptor trapping. Our results demonstrate the ability of muscle and endothelial cell-derived vascular growth factors, particularly Ang-1, to serve as multi-functional stimuli regulating crosstalk between blood vessels and muscle cells during regeneration from ischemic myopathy.
Collapse
Affiliation(s)
- Joseph M McClung
- Department of Physiology, Brody School of Medicine at East Carolina University Greenville, NC, USA ; Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University Greenville, NC, USA
| | - Jessica L Reinardy
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine Durham, NC, USA
| | - Sarah B Mueller
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine Durham, NC, USA ; Medical Scientist Training Program, Duke University School of Medicine Durham, NC, USA
| | - Timothy J McCord
- Division of Cardiology, Department of Medicine, Duke University Medical Center Durham, NC, USA
| | - Christopher D Kontos
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine Durham, NC, USA ; Medical Scientist Training Program, Duke University School of Medicine Durham, NC, USA ; Division of Cardiology, Department of Medicine, Duke University Medical Center Durham, NC, USA
| | - David A Brown
- Department of Physiology, Brody School of Medicine at East Carolina University Greenville, NC, USA ; Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University Greenville, NC, USA
| | - Sabah N A Hussain
- Meakins-Christie Laboratories, Department of Medicine, McGill University Health Centre, Royal Victoria Hospital, McGill University Montreal, QC, Canada ; Department of Critical Care, McGill University Health Centre, Royal Victoria Hospital, McGill University Montreal, QC, Canada
| | - Cameron A Schmidt
- Department of Physiology, Brody School of Medicine at East Carolina University Greenville, NC, USA ; Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University Greenville, NC, USA
| | - Terence E Ryan
- Department of Physiology, Brody School of Medicine at East Carolina University Greenville, NC, USA ; Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University Greenville, NC, USA
| | - Tom D Green
- Department of Physiology, Brody School of Medicine at East Carolina University Greenville, NC, USA ; Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University Greenville, NC, USA
| |
Collapse
|
31
|
Hedgehog and Resident Vascular Stem Cell Fate. Stem Cells Int 2015; 2015:468428. [PMID: 26064136 PMCID: PMC4438189 DOI: 10.1155/2015/468428] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 04/01/2015] [Indexed: 01/20/2023] Open
Abstract
The Hedgehog pathway is a pivotal morphogenic driver during embryonic development and a key regulator of adult stem cell self-renewal. The discovery of resident multipotent vascular stem cells and adventitial progenitors within the vessel wall has transformed our understanding of the origin of medial and neointimal vascular smooth muscle cells (SMCs) during vessel repair in response to injury, lesion formation, and overall disease progression. This review highlights the importance of components of the Hh and Notch signalling pathways within the medial and adventitial regions of adult vessels, their recapitulation following vascular injury and disease progression, and their putative role in the maintenance and differentiation of resident vascular stem cells to vascular lineages from discrete niches within the vessel wall.
Collapse
|
32
|
|
33
|
The angiopoietin/TIE receptor system: Focusing its role for ischemia-reperfusion injury. Cytokine Growth Factor Rev 2014; 26:281-91. [PMID: 25466648 DOI: 10.1016/j.cytogfr.2014.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 10/23/2014] [Accepted: 10/30/2014] [Indexed: 02/07/2023]
Abstract
Ischemia and reperfusion (I/R) are of fatal consequence for the affected organs, as they provoke a profound inflammatory reaction. This thoroughly destroys cells and tissues, inducing functional failure or even complete loss of organ function. Since I/R is primarily a vascular problem, the interaction between the endothelium and the surrounding environment is of great significance. The angiopoietins (ANG) and the TIE receptors are key players for the vascular homeostasis. This review summarizes biochemical and cellular mechanisms leading to I/R injury. After a brief introduction to the ANG/TIE system, a comprehensive overview of its role for the development of I/R syndrome is given. Finally, current therapeutic approaches to mitigate the consequences of I/R by modulating ANG/TIE signaling are reviewed in detail.
Collapse
|
34
|
Howangyin KY, Silvestre JS. Diabetes mellitus and ischemic diseases: molecular mechanisms of vascular repair dysfunction. Arterioscler Thromb Vasc Biol 2014; 34:1126-35. [PMID: 24675660 DOI: 10.1161/atvbaha.114.303090] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In patients with diabetes mellitus, the ability of ischemic tissue to synchronize the molecular and cellular events leading to restoration of tissue perfusion in response to the atherosclerotic occlusion of a patent artery is markedly impaired. As a consequence, adverse tissue remodeling and the extent of ischemic injury are intensified, leading to increased morbidity and mortality. Growing evidence from preclinical and clinical studies has implicated alterations in hypoxia-inducible factor 1 levels in the abrogation of proangiogenic pathways, including vascular endothelial growth factor A/phosphoinositide 3' kinase/AKT/endothelial nitric oxide synthase and in the activation of antiangiogenic signals characterized by accumulation of advanced glycation end products, reactive oxygen species overproduction, and endoplasmic reticulum stress. In addition, the diabetic milieu shows a switch toward proinflammatory antiregenerative pathways. Finally, the mobilization, subsequent recruitment, and the proangiogenic potential of the different subsets of angiogenesis-promoting bone marrow-derived cells are markedly impaired in the diabetic environment. In this review, we will give an overview of the current understanding on the signaling molecules contributing to the diabetes mellitus-induced impairment of postischemic revascularization mainly in the setting of myocardial infarction or critical limb ischemia.
Collapse
Affiliation(s)
- Kiave Yune Howangyin
- From the INSERM UMRS 970, Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | | |
Collapse
|
35
|
Abstract
Recruitment of mural cells (MCs), namely pericytes and smooth muscle cells (SMCs), is essential to improve the maturation of newly formed vessels. Sonic hedgehog (Shh) has been suggested to promote the formation of larger and more muscularized vessels, but the underlying mechanisms of this process have not yet been elucidated. We first identified Shh as a target of platelet-derived growth factor BB (PDGF-BB) and found that SMCs respond to Shh by upregulating extracellular signal-regulated kinase 1/2 and Akt phosphorylation. We next showed that PDGF-BB-induced SMC migration was reduced after inhibition of Shh or its signaling pathway. Moreover, we found that PDGF-BB-induced SMC migration involves Shh-mediated motility. In vivo, in the mouse model of corneal angiogenesis, Shh is expressed by MCs of newly formed blood vessels. PDGF-BB inhibition reduced Shh expression, demonstrating that Shh is a target of PDGF-BB, confirming in vitro experiments. Finally, we found that in vivo inhibition of either PDGF-BB or Shh signaling reduces NG2(+) MC recruitment into neovessels and subsequently reduces neovessel life span. Our findings demonstrate, for the first time, that Shh is involved in PDGF-BB-induced SMC migration and recruitment of MCs into neovessels and elucidate the molecular signaling pathway involved in this process.
Collapse
|
36
|
Renault MA, Robbesyn F, Chapouly C, Yao Q, Vandierdonck S, Reynaud A, Belloc I, Traiffort E, Ruat M, Desgranges C, Gadeau AP. Hedgehog-dependent regulation of angiogenesis and myogenesis is impaired in aged mice. Arterioscler Thromb Vasc Biol 2013; 33:2858-66. [PMID: 24135022 DOI: 10.1161/atvbaha.113.302494] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The purpose of this study is to further document alteration of signal transduction pathways, more particularly of hedgehog (Hh) signaling, causing impaired ischemic muscle repair in old mice. APPROACH AND RESULTS We used 12-week-old (young mice) and 20- to 24-month-old C57BL/6 mice (old mice) to investigate the activity of Hh signaling in the setting of hindlimb ischemia-induced angiogenesis and skeletal muscle repair. In this model, delayed ischemic muscle repair observed in old mice was associated with an impaired upregulation of Gli1. Sonic Hh expression was not different in old mice compared with young mice, whereas desert Hh (Dhh) expression was downregulated in the skeletal muscle of old mice both in healthy and ischemic conditions. The rescue of Dhh expression by gene therapy in old mice promoted ischemia-induced angiogenesis and increased nerve density; nevertheless, it failed to promote myogenesis or to increase Gli1 mRNA expression. After further investigation, we found that, in addition to Dhh, smoothened expression was significantly downregulated in old mice. We used smoothened haploinsufficient mice to demonstrate that smoothened knockdown by 50% is sufficient to impair activation of Hh signaling and ischemia-induced muscle repair. CONCLUSIONS The present study demonstrates that Hh signaling is impaired in aged mice because of Dhh and smoothened downregulation. Moreover, it shows that hegdehog-dependent regulation of angiogenesis and myogenesis involves distinct mechanisms.
Collapse
Affiliation(s)
- Marie-Ange Renault
- From the University of Bordeaux, Adaptation cardiovasculaire à l'ischémie, UMR1034, Pessac, France (M.-A.R., F.R., C.C., Q.Y., S.V., A.R., I.B., C.D., A.-P.G.); INSERM, Adaptation cardiovasculaire à l'ischémie, U1034, Pessac, France (M.-A.R., F.R., C.C., Q.Y., S.V., A.R., I.B., C.D., A.-P.G.); CHU de Bordeaux, Pharmacie de l'Hôpital Haut-Lévêque, Bordeaux, France (C.C., S.V.); and CNRS, UPR-3294, Laboratoire de Neurobiologie et Développement, Institut de Neurobiologie Alfred Fessard IFR2118, Gif-sur-Yvette, France (E.T., M.R.)
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Renault MA, Vandierdonck S, Chapouly C, Yu Y, Qin G, Metras A, Couffinhal T, Losordo DW, Yao Q, Reynaud A, Jaspard-Vinassa B, Belloc I, Desgranges C, Gadeau AP. Gli3 regulation of myogenesis is necessary for ischemia-induced angiogenesis. Circ Res 2013; 113:1148-58. [PMID: 24044950 DOI: 10.1161/circresaha.113.301546] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
RATIONALE A better understanding of the mechanism underlying skeletal muscle repair is required to develop therapies that promote tissue regeneration in adults. Hedgehog signaling has been shown previously to be involved in myogenesis and angiogenesis: 2 crucial processes for muscle development and regeneration. OBJECTIVE The objective of this study was to identify the role of the hedgehog transcription factor Gli3 in the cross-talk between angiogenesis and myogenesis in adults. METHODS AND RESULTS Using conditional knockout mice, we found that Gli3 deficiency in endothelial cells did not affect ischemic muscle repair, whereas in myocytes, Gli3 deficiency resulted in severely delayed ischemia-induced myogenesis. Moreover, angiogenesis was also significantly impaired in HSA-Cre(ERT2); Gli3(Flox/Flox) mice, demonstrating that impaired myogenesis indirectly affects ischemia-induced angiogenesis. The role of Gli3 in myocytes was then further investigated. We found that Gli3 promotes myoblast differentiation through myogenic factor 5 regulation. In addition, we found that Gli3 regulates several proangiogenic factors, including thymidine phosphorylase and angiopoietin-1 both in vitro and in vivo, which indirectly promote endothelial cell proliferation and arteriole formation. In addition, we found that Gli3 is upregulated in proliferating myoblasts by the cell cycle-associated transcription factor E2F1. CONCLUSIONS This study shows for the first time that Gli3-regulated postnatal myogenesis is necessary for muscle repair-associated angiogenesis. Most importantly, it implies that myogenesis drives angiogenesis in the setting of skeletal muscle repair and identifies Gli3 as a potential target for regenerative medicine.
Collapse
Affiliation(s)
- Marie-Ange Renault
- From the Université de Bordeaux, Adaptation cardiovasculaire à l'ischémie, U1034, Pessac, France
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|