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Bakrania AK, Variya BC, Patel SS. Insights from diversified anti-angiogenic models: Role of β-interferon inducer DEAE-Dextran. Pharmacol Rep 2018; 70:549-557. [PMID: 29677525 DOI: 10.1016/j.pharep.2018.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 01/09/2018] [Accepted: 01/23/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Angiogenesis, the physiological process involving growth of new blood vessels from preexisting vessels, is essential for organ growth and repair. However, the imbalance in angiogenesis contributes to copious pathologies including cancer. Preceding the development of anti-angiogenic or proangiogenic agents, its evaluation is equally imperative; hence, precise and adequate models required. Valid mammalian models are expensive, time-consuming and not easy to set up, instigating legal and ethical aspects making it necessary to establish models with satisfactory activity and limited drawbacks. METHODS We investigated the activity of DEAE-Dextran on diversified models viz. in vitro cell migration assay, ex vivo aortic ring assay, in vitro chick yolk sac membrane assay and in vivo matrigel plug xenograft model corroborating its anti-angiogenic potential and establishing the best means of evaluation. RESULTS Assorted models were reproducible and correlative to one another. DEAE-Dextran exhibited excellent anti-angiogenic effect in cell migration assay over a duration of 24h compared to the vehicle control fibroblast cell line and aortic ring possessed an alleviated rate of sprouting when treated with DEAE-Dextran with contrast to vehicle control aorta. Similarly, decreased vascular density was observed in DEAE-Dextran treated chick embryos implicating potency of the β-interferon inducer. Augmenting to these results, the matrigel plugs also mitigated vascular net as well as reduced levels of angiogenic marker CD31. CONCLUSION Substantially, DEAE-Dextran leads to anti-tumor activity through anti-angiogenic action and a combination of in vitro and in vivo model is vital for the judgement of anti-angiogenic potential since an in vitro model exempts mammalian-culture considerations.
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Affiliation(s)
- Anita K Bakrania
- Department of Pharmacology, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India
| | - Bhavesh C Variya
- Department of Pharmacology, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India
| | - Snehal S Patel
- Department of Pharmacology, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India.
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Di Gregoli K, George SJ, Jackson CL, Newby AC, Johnson JL. Differential effects of tissue inhibitor of metalloproteinase (TIMP)-1 and TIMP-2 on atherosclerosis and monocyte/macrophage invasion. Cardiovasc Res 2016; 109:318-30. [PMID: 26645981 PMCID: PMC4724937 DOI: 10.1093/cvr/cvv268] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 11/29/2015] [Indexed: 12/30/2022] Open
Abstract
AIMS MMPs contribute to atherosclerotic plaque progression and instability, but the relative potency of their endogenous tissue inhibitors of metalloproteinases (TIMPs) as protective factors has not been defined. We therefore investigated the impact of TIMP-1 and TIMP-2 knockout on atherosclerotic plaque burden and composition in apolipoprotein E-knockout (Apoe(-/-)) mice and studied the underlying effects on monocyte/macrophage behaviour. METHODS AND RESULTS Analysis of brachiocephalic artery plaques revealed comparable atherosclerotic lesion areas between TIMP-1(-/-) Apoe(-/-) or TIMP-2(-/-) Apoe(-/-) double deficient mice and relevant age-matched, strain-matched Apoe(-/-) controls after 8 weeks of high-fat feeding. However, lesions from TIMP-2(-/-) Apoe(-/-) mice had higher levels of markers associated with plaque vulnerability, including increased macrophage: vascular smooth muscle cell ratios, larger necrotic core areas, reduced collagen contents, increased macrophage proliferation, and apoptosis frequencies, compared with TIMP-1(-/-)Apoe(-/-) and controls. In contrast, TIMP-1(-/-) Apoe(-/-) animals only had a significant reduction in vascular smooth muscle cell content compared with Apoe(-/-) controls. In vitro and in vivo findings implicated heightened monocyte/macrophage invasion in the detrimental effects observed on atherosclerotic plaque composition in TIMP-2(-/-) Apoe(-/-) mice. Moreover, TIMP-2 specifically decreased MMP-14-dependent monocyte/macrophage infiltration into sites of experimentally induced inflammation and established atherosclerotic lesions. CONCLUSION Our data demonstrate that TIMP-2 plays a greater protective role than TIMP-1 during the pathogenesis of atherosclerosis, in part by suppressing MMP-14-dependent monocyte/macrophage accumulation into plaques.
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Cherifi H, Gogly B, Loison-Robert LS, Couty L, Ferré FC, Nassif A, Lafont A, Fournier BP. Comparative study of abdominal and thoracic aortic aneurysms: their pathogenesis and a gingival fibroblasts-based ex vivo treatment. SPRINGERPLUS 2015; 4:231. [PMID: 26110102 PMCID: PMC4475515 DOI: 10.1186/s40064-015-0976-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/13/2015] [Indexed: 11/10/2022]
Abstract
Aortic aneurysms (AAs) consist of slow proteolysis and loss of both collagen and elastin matrix in the aorta wall, leading to wall dilation, weakening and rupture in well-advanced lesions. This can occur in both abdominal aorta (Abdominal Aortic Aneurysm: AAA) and thoracic aorta (Thoracic Aortic Aneurysm: TAA). To date, no non-surgical therapy has been proposed to slow or stop AA progression. Previously published preclinical studies from our team using an aneurysm rabbit model showed a promising concept for treatment of AAs with gingival fibroblast (GFs) which are readily available cells. In this study, we investigated the possible tissue repair of human AAAs and TAAs using ex vivo models co-cultured with GFs. Histological analysis showed that TAA and AAA are two distinct pathologies. Both lesions presented destruction of the aorta wall, highly evidenced in AAA samples. The results have confirmed the presence of the bacterial Porphyromonas gingivalis (Pg) protein in all AAA samples, but not in TAA samples, indicating the possible role of an infectious factor in the developing and progression of AAA lesions compared to TAA. The co-culture of GFs with AA lesions shows increased expression of TIMP-1, the inhibitor of the aneurysm severity marker MMP-9. Our study indicates that GFs might ameliorate aorta wall reestablishment in both AA types by their regenerative and immunomodulatory capacities. It also demonstrates the possible infectious cause of AAA compared with TAA that may explain their different behavior.
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Affiliation(s)
- Hafida Cherifi
- Centre de recherche des cordeliers, INSERM UMRS 1138, Team 5, Laboratory of Molecular Oral Pathophysiology, Paris, France ; Paris-Est University, Créteil, France ; Paris-Descartes University, Paris, France ; A. Chenevier/H.Mondor Hospitals, Dental Department, APHP, Créteil, France
| | - Bruno Gogly
- Centre de recherche des cordeliers, INSERM UMRS 1138, Team 5, Laboratory of Molecular Oral Pathophysiology, Paris, France ; Paris-Est University, Créteil, France ; Paris-Descartes University, Paris, France ; A. Chenevier/H.Mondor Hospitals, Dental Department, APHP, Créteil, France
| | - Ludwig-Stanislas Loison-Robert
- Centre de recherche des cordeliers, INSERM UMRS 1138, Team 5, Laboratory of Molecular Oral Pathophysiology, Paris, France ; Paris-Est University, Créteil, France ; Paris-Descartes University, Paris, France ; A. Chenevier/H.Mondor Hospitals, Dental Department, APHP, Créteil, France
| | - Ludovic Couty
- Paris centre de recherche cardiovasculaire, INSERM UMRS 970, Team 11, Paris, France
| | - François Côme Ferré
- Centre de recherche des cordeliers, INSERM UMRS 1138, Team 5, Laboratory of Molecular Oral Pathophysiology, Paris, France ; Paris-Descartes University, Paris, France
| | - Ali Nassif
- Centre de recherche des cordeliers, INSERM UMRS 1138, Team 5, Laboratory of Molecular Oral Pathophysiology, Paris, France ; Paris-Est University, Créteil, France ; A. Chenevier/H.Mondor Hospitals, Dental Department, APHP, Créteil, France
| | - Antoine Lafont
- Paris centre de recherche cardiovasculaire, INSERM UMRS 970, Team 11, Paris, France
| | - Benjamin Pj Fournier
- Centre de recherche des cordeliers, INSERM UMRS 1138, Team 5, Laboratory of Molecular Oral Pathophysiology, Paris, France ; Paris-Diderot University, Paris, France ; Rothschild Hospital, Dental Department, AP-HP, Paris, France
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Le AP, Friedman WJ. Matrix metalloproteinase-7 regulates cleavage of pro-nerve growth factor and is neuroprotective following kainic acid-induced seizures. J Neurosci 2012; 32:703-12. [PMID: 22238106 PMCID: PMC3874860 DOI: 10.1523/jneurosci.4128-11.2012] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 10/31/2011] [Accepted: 11/02/2011] [Indexed: 11/21/2022] Open
Abstract
The neurotrophin nerve growth factor (NGF) regulates neuronal growth, differentiation, and survival during development. However, the precursor of NGF, proNGF, is a potent apoptotic ligand for the p75 neurotrophin receptor (p75(NTR))-sortilin complex. The mechanisms that regulate cleavage of proNGF, therefore, are critical determinants of whether this factor promotes neuronal survival or death. In this study, we demonstrate that, following kainic acid-induced seizures, the proNGF processing enzyme matrix metalloproteinase 7 (MMP-7) and its inhibitor TIMP-1 (tissue inhibitor of matrix metalloproteinase 1) are regulated in a manner that prevents proneurotrophin cleavage and leads to increased proNGF in the extracellular milieu. Furthermore, we demonstrate both in vitro and in vivo that exogenous MMP-7 enhances proNGF cleavage and provides neuroprotection following kainic acid treatment. These data demonstrate that increased extracellular proNGF levels following seizures are stabilized by altered MMP-7 enzymatic activity, leading to increased neuronal death via activation of p75(NTR).
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Affiliation(s)
- Audrey P. Le
- Department of Biological Sciences, Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, New Jersey 07102
| | - Wilma J. Friedman
- Department of Biological Sciences, Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, New Jersey 07102
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Naveau A, Lataillade JJ, Fournier BP, Couty L, Prat M, Ferre FC, Gourven M, Durand E, Coulomb B, Lafont A, Gogly B. Phenotypic Study of Human Gingival Fibroblasts in a Medium Enriched With Platelet Lysate. J Periodontol 2011; 82:632-41. [DOI: 10.1902/jop.2010.100179] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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