1
|
Pernomian L, Blascke de Mello MM, Parente JM, Sanches-Lopes JM, Tanus-Santos JE, Parreiras E Silva LT, Antunes-Rodrigues J, da Conceição Dos Santos R, Elias LLK, Fabro AT, Silva CAA, Fazan R, de Castro MM. The hydrogen sulfide donor 4-carboxyphenyl-isothiocyanate decreases blood pressure and promotes cardioprotective effect through reduction of oxidative stress and nuclear factor kappa B/matrix metalloproteinase (MMP)-2 axis in hypertension. Life Sci 2024; 351:122819. [PMID: 38857651 DOI: 10.1016/j.lfs.2024.122819] [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: 04/18/2024] [Revised: 05/30/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
AIMS Our aim was to evaluate whether the hydrogen sulfide (H2S) donor, 4-carboxyphenyl-isothiocyanate (4-CPI), exerts cardioprotective effect in the two kidney- one clip (2K-1C) rats through oxidative stress and MMP-2 activity attenuation and compare it with the classical H2S donor, Sodium Hydrosulfide (NaHS). MATERIALS AND METHODS Renovascular hypertension (two kidneys-one clip; 2K-1C) was surgically induced in male Wistar rats. After two weeks, normotensive (2K) and hypertensive rats were intraperitoneally treated with vehicle (0.6 % dimethyl sulfoxide), NaHS (0.24 mg/Kg/day) or with 4-CPI (0.24 mg/Kg/day), for more 4 weeks. Systolic blood pressure (SBP) was evaluated weekly by tail-cuff plethysmography. Heart function was assessed by using the Millar catheter. Cardiac hypertrophy and fibrosis were evaluated by hematoxylin and eosin, and Picrosirius Red staining, respectively. The H2S was analyzed using WSP-1 fluorimetry and the cardiac oxidative stress was measured by lucigenin chemiluminescence and Amplex Red. MMP-2 activity was measured by in-gel gelatin or in situ zymography assays. Nox1, gp91phox, MMP-2 and the phospho-p65 subunit (Serine 279) nuclear factor kappa B (NF-κB) levels were evaluated by Western blotting. KEY FINDINGS 4-CPI reduced blood pressure in hypertensive rats, decreased cardiac remodeling and promoted cardioprotection through the enhancement of cardiac H2S levels. An attenuation of oxidative stress, with inactivation of the p65-NF-κB/MMP-2 axis was similarly observed after NaHS or 4-CPI treatment in 2K-1C hypertension. SIGNIFICANCE H2S is a mediator that promotes cardioprotective effects and decreases blood pressure, and 4-CPI seems to be a good candidate to reverse the maladaptive remodeling and cardiac dysfunction in renovascular hypertension.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Alexandre Todorovic Fabro
- Department of Pathology and Legal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | | |
Collapse
|
2
|
Souza C, Caetano E, Rodrigues S, Lopes M, Mattos B, Santos M, Rizzi E, Dias-Junior C. Isoflurane increases the activity of the vascular matrix metalloproteinase-2 in non-pregnant rats and increases the nitric oxide metabolites in pregnancy. Biosci Rep 2024; 44:BSR20240192. [PMID: 38757914 PMCID: PMC11147811 DOI: 10.1042/bsr20240192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 05/08/2024] [Accepted: 05/16/2024] [Indexed: 05/18/2024] Open
Abstract
Surgeries that require general anesthesia occur in 1.5-2% of gestations. Isoflurane is frequently used because of its lower possibility of affecting fetal growth. Therefore, we examined the isoflurane anesthesia-induced effects on maternal hemodynamic and vascular changes. We hypothesized that isoflurane would enhance endothelium-dependent vasodilation as a consequence of increased nitric oxide and decreased metalloproteinases (MMPs). Female rats (n=28) were randomized into 4 groups (7 rats/group): conscious (non-anesthetized) non-pregnant group, non-pregnant anesthetized group, conscious pregnant group, and pregnant anesthetized group. Anesthesia was performed on the 20th pregnancy day, and hemodynamic parameters were monitored. Nitric oxide metabolites, gelatinolytic activity of MMP-2 and MMP-9, and the vascular function were assessed. Isoflurane caused no significant hemodynamic changes in pregnant compared with non-pregnant anesthetized group. Impaired acetylcholine-induced relaxations were observed only in conscious non-pregnant group (by approximately 62%) versus 81% for other groups. Phenylephrine-induced contractions were greater in endothelium-removed aorta segments of both pregnant groups (with or without isoflurane) compared with non-pregnant groups. Higher nitric oxide metabolites were observed in anesthetized pregnant in comparison with the other groups. Reductions in the 75 kDa activity and concomitant increases in 64 kDa MMP-2 isoforms were observed in aortas of pregnant anesthetized (or not) groups compared with conscious non-pregnant group. Isoflurane anesthesia shows stable effects on hemodynamic parameters and normal MMP-2 activation in pregnancy. Furthermore, there were increases in nitric oxide bioavailability, suggesting that isoflurane provides protective actions to the endothelium in pregnancy.
Collapse
Affiliation(s)
- Carolina Rosa Rodrigues Souza
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (UNESP), Botucatu, Sao Paulo, Brazil
- School of Veterinary Medicine and Animal Science, UNESP, Botucatu, Sao Paulo, Brazil
| | - Edileia Souza Paula Caetano
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (UNESP), Botucatu, Sao Paulo, Brazil
| | - Serginara David Rodrigues
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (UNESP), Botucatu, Sao Paulo, Brazil
| | - Matheus Cleto Lopes
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (UNESP), Botucatu, Sao Paulo, Brazil
- School of Veterinary Medicine and Animal Science, UNESP, Botucatu, Sao Paulo, Brazil
| | - Bruna Rahal Mattos
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo, Brazil
| | | | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo, Brazil
| | - Carlos A. Dias-Junior
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, Sao Paulo State University (UNESP), Botucatu, Sao Paulo, Brazil
| |
Collapse
|
3
|
Rodrigues SD, da Silva MLS, Martins LZ, Gomes SEB, Mariani NAP, Silva EJR, Kushima H, Mattos BR, Rizzi E, Dias-Junior CA. Pregnancy hypertension-associated endothelial dysfunction is attenuated by isoflurane anesthesia: Evidence of protective effect related to increases in nitric oxide. Life Sci 2023; 331:122039. [PMID: 37648198 DOI: 10.1016/j.lfs.2023.122039] [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: 07/10/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/01/2023]
Abstract
AIMS Pregnancy hypertension-induced endothelial dysfunction associated with impairment of nitric oxide (NO) bioavailability and hemodynamic derangements is a challenging for urgent procedures requiring maternal anesthesia. The volatile anesthetic isoflurane has demonstrated NO-associated protective effects. However, this isoflurane-induced effect is still unclear in pregnancy hypertension. Therefore, the present study examined the potential protective effects of isoflurane anesthesia on endothelial dysfunction and hemodynamic changes induced by hypertensive pregnancy associated with fetal and placental growth restrictions. MATERIALS AND METHODS Animals were distributed into four groups: normotensive pregnant rats (Preg), anesthetized pregnant rats (Preg+Iso), hypertensive pregnant rats (HTN-Preg), and anesthetized hypertensive pregnant rats (HTN-Preg+Iso). Systolic and diastolic pressures, mean arterial pressure (MAP), heart rate, fetal and placental weights, vascular contraction, endothelium-derived NO-dependent vasodilation, and NO levels were assessed. The vascular endothelial growth factor (VEGF) levels and endothelial NO synthase (eNOS) Serine (1177) phosphorylation (p-eNOS) expression were also examined. KEY FINDINGS Isoflurane produced more expressive hypotensive effects in the HTN-Preg+Iso versus Preg+Iso group, with respective reductions in MAP by 50 ± 13 versus 25 ± 4 mmHg (P < 0.05). Also, HTN-Preg+Iso compared to the HTN-Preg group showed (respectively) preventions against the weight loss of the fetuses (4.0 ± 0.6 versus 2.8 ± 0.6 g, P < 0.05) and placentas (0.37 ± 0.06 versus 0.30 ± 0.06 mg, P < 0.05), hyper-reactive vasocontraction response (1.8 ± 0.4 versus 2.8 ± 0.6 g, P < 0.05), impaired endothelium-derived NO-dependent vasodilation (84 ± 8 versus 50 ± 17 %, P < 0.05), reduced VEGF levels (147 ± 46 versus 25 ± 13 pg/mL, P < 0.05), and decreased p-eNOS expression (0.24 ± 0.07 versus 0.09 ± 0.05 arbitrary units, P < 0.05). SIGNIFICANCE Isoflurane anesthesia protects maternal endothelial function in pregnancy hypertension, and possibly endothelium-derived NO is involved.
Collapse
Affiliation(s)
- Serginara David Rodrigues
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Maria Luiza Santos da Silva
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Laisla Zanetoni Martins
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Sáskia Estela Biasotti Gomes
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Noemia A P Mariani
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Erick J R Silva
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Hélio Kushima
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil
| | - Bruna Rahal Mattos
- Unit of Biotechnology, University of Ribeirao Preto (UNAERP), Ribeirao Preto 14096-900, SP, Brazil
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto (UNAERP), Ribeirao Preto 14096-900, SP, Brazil
| | - Carlos Alan Dias-Junior
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, 18618-689, SP, Brazil.
| |
Collapse
|
4
|
Ribeiro Vitorino T, Ferraz do Prado A, Bruno de Assis Cau S, Rizzi E. MMP-2 and its implications on cardiac function and structure: Interplay with inflammation in hypertension. Biochem Pharmacol 2023; 215:115684. [PMID: 37459959 DOI: 10.1016/j.bcp.2023.115684] [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: 05/27/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 08/01/2023]
Abstract
Hypertension is one of the leading risk factors for the development of heart failure. Despite being a multifactorial disease, in recent years, preclinical and clinical studies suggest strong evidence of the pivotal role of inflammatory cells and cytokines in the remodeling process and cardiac dysfunction. During the heart remodeling, activation of extracellular matrix metalloproteinases (MMPs) occurs, with MMP-2 being one of the main proteases secreted by cardiomyocytes, fibroblasts, endothelial and inflammatory cells in cardiac tissue. In this review, we will address the process of cardiac remodeling and injury induced by the increase in MMP-2 and the main signaling pathways involving cytokines and inflammatory cells in the process of transcriptional, secretion and activation of MMP-2. In addition, an interaction and coordinated action between MMP-2 and inflammation are explored and significant in maintaining the cardiac cycle. These observations suggest that new therapeutic opportunities targeting MMP-2 could be used to reduce inflammatory biomarkers and reduce cardiac damage in hypertension.
Collapse
Affiliation(s)
- Thaís Ribeiro Vitorino
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Brazil; Department of Pharmacology, Faculty of Medical Sciences, University of Campinas, UNICAMP, Brazil
| | - Alejandro Ferraz do Prado
- Cardiovascular System Pharmacology and Toxicology, Institute of Biological Sciences, Federal University of Para, UFPA, Brazil
| | - Stefany Bruno de Assis Cau
- Department of Pharmacology, Institute of Biological Science, Federal University of Minas Gerais, UFMG, Brazil.
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Brazil.
| |
Collapse
|
5
|
Martins LZ, da Silva MLS, Rodrigues SD, Gomes SEB, Molezini L, Rizzi E, Montenegro MF, Dias-Junior CA. Sodium Nitrite Attenuates Reduced Activity of Vascular Matrix Metalloproteinase-2 and Vascular Hyper-Reactivity and Increased Systolic Blood Pressure Induced by the Placental Ischemia Model of Preeclampsia in Anesthetized Rats. Int J Mol Sci 2023; 24:12818. [PMID: 37628999 PMCID: PMC10454117 DOI: 10.3390/ijms241612818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Preeclampsia is a maternal hypertension disorder associated with vascular dysfunction and fetal and placental growth restrictions. Placental ischemia is suggested as the primary trigger of preeclampsia-associated impairments of both endothelium-derived nitric oxide (NO) and the vascular activity of extracellular matrix metalloproteinase-2 (MMP-2). Reduced uteroplacental perfusion pressure (RUPP) is a placental ischemia model of preeclampsia. Reduction of sodium nitrite to NO may occur during ischemic conditions. However, sodium nitrite effects in the RUPP model of preeclampsia have not yet been investigated. Pregnant rats were divided into four groups: normotensive pregnant rats (Norm-Preg), pregnant rats treated with sodium nitrite (Preg + Nitrite), preeclamptic rats (RUPP), and preeclamptic rats treated with sodium nitrite (RUPP + Nitrite). Maternal blood pressure and fetal and placental parameters were recorded. Vascular function, circulating NO metabolites, and the gelatinolytic activity of vascular MMP-2 were also examined. Sodium nitrite attenuates increased blood pressure, prevents fetal and placental weight loss, counteracts vascular hyper-reactivity, and partially restores NO metabolites and MMP-2 activity. In conclusion, sodium nitrite reduction to NO may occur during RUPP-induced placental ischemia, thereby attenuating increased blood pressure, fetal and placental growth restriction, and vascular hyper-reactivity associated with preeclampsia and possibly restoring NO and MMP-2 activity, which underlie the blood pressure-lowering effects.
Collapse
Affiliation(s)
- Laisla Zanetoni Martins
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil; (L.Z.M.); (M.L.S.d.S.); (S.D.R.); (S.E.B.G.)
| | - Maria Luiza Santos da Silva
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil; (L.Z.M.); (M.L.S.d.S.); (S.D.R.); (S.E.B.G.)
| | - Serginara David Rodrigues
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil; (L.Z.M.); (M.L.S.d.S.); (S.D.R.); (S.E.B.G.)
| | - Sáskia Estela Biasotti Gomes
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil; (L.Z.M.); (M.L.S.d.S.); (S.D.R.); (S.E.B.G.)
| | - Laura Molezini
- Unit of Biotechnology, University of Ribeirao Preto (UNAERP), Ribeirao Preto 14096-900, Brazil; (L.M.); (E.R.)
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto (UNAERP), Ribeirao Preto 14096-900, Brazil; (L.M.); (E.R.)
| | - Marcelo Freitas Montenegro
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, 10691 Stockholm, Sweden;
| | - Carlos Alan Dias-Junior
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil; (L.Z.M.); (M.L.S.d.S.); (S.D.R.); (S.E.B.G.)
| |
Collapse
|
6
|
Toghi CJ, Martins LZ, Pacheco LL, Caetano ESP, Mattos BR, Rizzi E, Dias-Junior CA. Pravastatin Prevents Increases in Activity of Metalloproteinase-2 and Oxidative Stress, and Enhances Endothelium-Derived Nitric Oxide-Dependent Vasodilation in Gestational Hypertension. Antioxidants (Basel) 2023; 12:antiox12040939. [PMID: 37107314 PMCID: PMC10135677 DOI: 10.3390/antiox12040939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/31/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Pre-eclampsia (PE) is a hypertensive disorder of pregnancy and has been associated with placental growth restriction. The pre-eclamptic placenta releases free radicals to maternal circulation, thus increasing oxidative stress. An impaired redox state leads to reduction in circulating nitric oxide (NO) levels and activation of extracellular matrix metalloproteinases (MMPs). However, activation of MMPs induced by oxidative stress is still unclear in PE. Antioxidant effects have been demonstrated with the use of pravastatin. Therefore, we hypothesized that pravastatin protects against oxidative stress-induced activation of MMPs in a rat model of PE. The animals were divided into four groups: normotensive pregnant rats (Norm-Preg); pregnant rats treated with pravastatin (Norm-Preg + Prava); hypertensive pregnant rats (HTN-Preg); and hypertensive pregnant rats treated with pravastatin (HTN-Preg + Prava). The deoxycorticosterone acetate (DOCA) and sodium chloride (DOCA-salt) model was used to induce hypertension in pregnancy. Blood pressure, and fetal and placental parameters were recorded. The gelatinolytic activity of MMPs, NO metabolites and lipid peroxide levels were also determined. Endothelium function was also examined. Pravastatin attenuated maternal hypertension, prevented placental weight loss, increased NO metabolites, inhibited increases in lipid peroxide levels, and reduced the activity of MMP-2, and these effects were observed along with enhanced endothelium-derived NO-dependent vasodilation. The present results provide evidence that pravastatin protects against activation of MMP-2 induced by oxidative stress in pre-eclamptic rats. These findings may also involve improvement in endothelial function related to NO and antihypertensive effects of pravastatin, thus suggesting pravastatin as a therapeutic intervention for PE.
Collapse
Affiliation(s)
- Cristal Jesus Toghi
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
| | - Laisla Zanetoni Martins
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
| | - Leonardo Lopes Pacheco
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
| | - Edileia Souza Paula Caetano
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
| | - Bruna Rahal Mattos
- Unit of Biotechnology, University of Ribeirao Preto (UNAERP), Ribeirao Preto 14096-900, SP, Brazil
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto (UNAERP), Ribeirao Preto 14096-900, SP, Brazil
| | - Carlos Alan Dias-Junior
- Department of Biophysics and Pharmacology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
| |
Collapse
|
7
|
Quercetin decreases cardiac hypertrophic mediators and maladaptive coronary arterial remodeling in renovascular hypertensive rats without improving cardiac function. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 396:939-949. [PMID: 36527481 DOI: 10.1007/s00210-022-02349-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/22/2022] [Indexed: 12/23/2022]
Abstract
Oxidative stress and MMP activity are found in the hearts and arteries in hypertension and contribute to the resulting hypertrophy and dysfunction. Quercetin is a flavonoid that reduces MMP-2 activity and ameliorates hypertrophic vascular remodeling of hypertension. The hypothesis is that treatment of hypertensive rats with quercetin ameliorates coronary maladaptive remodeling and decreases hypertrophic cardiac dysfunction by decreasing oxidative stress and MMP activity. Male Sprague-Dawley two-kidney, one-clip (2K1C) and Sham rats were treated with quercetin (10 mg/kg/day) or its vehicle for 8 weeks by gavage. Rats were analyzed at 10 weeks of hypertension. Systolic blood pressure (SBP) was examined by tail-cuff plethysmography. Cardiac left ventricles were used to determine MMP activity by in situ zymography and oxidative stress by dihydroethidium. Immunofluorescence was performed to detect transforming growth factor (TGF)-β and nuclear factor kappa B (NFkB). Morphological analyses of heart and coronary arteries were done by H&E and picrosirius red, and cardiac function was measured by Langendorff. SBP was increased in 2K1C rats, and quercetin did not reduce it. However, quercetin decreased both oxidative stress and TGF-β in the left ventricles of 2K1C rats. Quercetin also decreased the accentuated MMP activity in left ventricles and coronary arteries of 2K1C rats. Quercetin ameliorated hypertension-induced coronary arterial hypertrophic remodeling, although it did not reduce cardiac hypertrophic remodeling and dysfunction. Quercetin decreases cardiac oxidative stress and TGF-β and MMP activity in addition to improving coronary remodeling, yet does not ameliorate cardiac dysfunction in 2K1C rats.
Collapse
|
8
|
Gonçalves PR, Nascimento LD, Gerlach RF, Rodrigues KE, Prado AF. Matrix Metalloproteinase 2 as a Pharmacological Target in Heart Failure. Pharmaceuticals (Basel) 2022; 15:ph15080920. [PMID: 35893744 PMCID: PMC9331741 DOI: 10.3390/ph15080920] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 12/18/2022] Open
Abstract
Heart failure (HF) is an acute or chronic clinical syndrome that results in a decrease in cardiac output and an increase in intracardiac pressure at rest or upon exertion. The pathophysiology of HF is heterogeneous and results from an initial harmful event in the heart that promotes neurohormonal changes such as autonomic dysfunction and activation of the renin-angiotensin-aldosterone system, endothelial dysfunction, and inflammation. Cardiac remodeling occurs, which is associated with degradation and disorganized synthesis of extracellular matrix (ECM) components that are controlled by ECM metalloproteinases (MMPs). MMP-2 is part of this group of proteases, which are classified as gelatinases and are constituents of the heart. MMP-2 is considered a biomarker of patients with HF with reduced ejection fraction (HFrEF) or preserved ejection fraction (HFpEF). The role of MMP-2 in the development of cardiac injury and dysfunction has clearly been demonstrated in animal models of cardiac ischemia, transgenic models that overexpress MMP-2, and knockout models for this protease. New research to minimize cardiac structural and functional alterations using non-selective and selective inhibitors for MMP-2 demonstrates that this protease could be used as a possible pharmacological target in the treatment of HF.
Collapse
Affiliation(s)
- Pricila Rodrigues Gonçalves
- Cardiovascular System Pharmacology and Toxicology Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil; (P.R.G.); (L.D.N.); (K.E.R.)
| | - Lisandra Duarte Nascimento
- Cardiovascular System Pharmacology and Toxicology Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil; (P.R.G.); (L.D.N.); (K.E.R.)
| | - Raquel Fernanda Gerlach
- Department of Basic and Oral Biology, Faculty of Dentistry of Ribeirao Preto, University of Sao Paulo (FORP/USP), Ribeirao Preto 14040-904, SP, Brazil;
| | - Keuri Eleutério Rodrigues
- Cardiovascular System Pharmacology and Toxicology Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil; (P.R.G.); (L.D.N.); (K.E.R.)
| | - Alejandro Ferraz Prado
- Cardiovascular System Pharmacology and Toxicology Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil; (P.R.G.); (L.D.N.); (K.E.R.)
- Correspondence:
| |
Collapse
|
9
|
Trentini A, Manfrinato MC, Castellazzi M, Bellini T. Sex-Related Differences of Matrix Metalloproteinases (MMPs): New Perspectives for These Biomarkers in Cardiovascular and Neurological Diseases. J Pers Med 2022; 12:jpm12081196. [PMID: 35893290 PMCID: PMC9331234 DOI: 10.3390/jpm12081196] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/16/2022] Open
Abstract
It is now established that sex differences occur in clinical manifestation, disease progression, and prognosis for both cardiovascular (CVDs) and central nervous system (CNS) disorders. As such, a great deal of effort is now being put into understanding these differences and turning them into “advantages”: (a) for the discovery of new sex-specific biomarkers and (b) through a review of old biomarkers from the perspective of the “newly” discovered sex/gender medicine. This is also true for matrix metalloproteinases (MMPs), enzymes involved in extracellular matrix (ECM) remodelling, which play a role in both CVDs and CNS disorders. However, most of the studies conducted up to now relegated sex to a mere confounding variable used for statistical model correction rather than a determining factor that can influence MMP levels and, in turn, disease prognosis. Consistently, this approach causes a loss of information that might help clinicians in identifying novel patterns and improve the applicability of MMPs in clinical practice by providing sex-specific threshold values. In this scenario, the current review aims to gather the available knowledge on sex-related differences in MMPs levels in CVDs and CNS conditions, hoping to shed light on their use as sex-specific biomarkers of disease prognosis or progression.
Collapse
Affiliation(s)
- Alessandro Trentini
- Department of Environmental and Prevention Sciences, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy;
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
| | - Maria Cristina Manfrinato
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.C.M.); (T.B.)
| | - Massimiliano Castellazzi
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.C.M.); (T.B.)
- Interdepartmental Research Center for the Study of Multiple Sclerosis and Inflammatory and Degenerative Diseases of the Nervous System, University of Ferrara, 44121 Ferrara, Italy
- Correspondence:
| | - Tiziana Bellini
- University Center for Studies on Gender Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.C.M.); (T.B.)
| |
Collapse
|
10
|
Mechanisms underlying the effects of caloric restriction on hypertension. Biochem Pharmacol 2022; 200:115035. [DOI: 10.1016/j.bcp.2022.115035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 11/20/2022]
|
11
|
Rodrigues KE, Azevedo A, Gonçalves PR, Pontes MHB, Alves GM, Oliveira RR, Amarante CB, Issa JPM, Gerlach RF, Prado AF. Doxycycline Decreases Atherosclerotic Lesions in the Aorta of ApoE-⁄- and Ovariectomized Mice with Correlation to Reduced MMP-2 Activity. Int J Mol Sci 2022; 23:ijms23052532. [PMID: 35269673 PMCID: PMC8910467 DOI: 10.3390/ijms23052532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/26/2022] [Accepted: 01/30/2022] [Indexed: 02/05/2023] Open
Abstract
Atherogenic events promote changes in vessel walls, with alteration of the redox state, and increased activity of matrix metalloproteinases (MMPs). Thus, this study aims to evaluate aortic remodeling, MMP activity, and reactive oxygen species (ROS) levels after treatment with doxycycline in ApoE-⁄- and ovariectomized mice (OVX). Female ApoE-⁄--knockout mice (5 weeks) were submitted to ovariectomy surgery to induce experimental menopause. They then received chow enriched with 1% cholesterol to induce hypercholesterolemia. The animals were divided into two experimental groups: ApoE-⁄-/OVX vehicle and ApoE-⁄-/OVX doxycycline (30 mg/kg) administered by gavage once a day for 28 days (15th to the 18th week of life). Blood samples were collected to measure total cholesterol and fractions. The aorta was used for morphometry and to measure the activity and expression of MMP-2 and ROS levels. The ApoE-⁄-/OVX doxycycline group showed no change in total and fraction cholesterol levels. However, there was a reduction in ROS levels, MMP-2 expression, and activity that correlated with a decrease in atherosclerotic lesions relative to the ApoE-⁄-/OVX vehicle (p > 0.05). Therefore, we conclude that doxycycline in ApoE-⁄-/OVX animals promotes a reduction in atherosclerotic lesions by reducing ROS and MMP-2 activity and expression.
Collapse
Affiliation(s)
- Keuri E. Rodrigues
- Institute of Biological Sciences, Federal University of Pará, Cardiovascular System Pharmacology and Toxicology Laboratory, Belém 66075-110, PA, Brazil; (K.E.R.); (P.R.G.); (M.H.B.P.); (G.M.A.); (R.R.O.)
| | - Aline Azevedo
- Department of Biomechanics, Medicine and Locomotor Apparatus Rehabilitation, Faculty of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14049-900, SP, Brazil;
| | - Pricila R. Gonçalves
- Institute of Biological Sciences, Federal University of Pará, Cardiovascular System Pharmacology and Toxicology Laboratory, Belém 66075-110, PA, Brazil; (K.E.R.); (P.R.G.); (M.H.B.P.); (G.M.A.); (R.R.O.)
| | - Maria H. B. Pontes
- Institute of Biological Sciences, Federal University of Pará, Cardiovascular System Pharmacology and Toxicology Laboratory, Belém 66075-110, PA, Brazil; (K.E.R.); (P.R.G.); (M.H.B.P.); (G.M.A.); (R.R.O.)
| | - Gustavo M. Alves
- Institute of Biological Sciences, Federal University of Pará, Cardiovascular System Pharmacology and Toxicology Laboratory, Belém 66075-110, PA, Brazil; (K.E.R.); (P.R.G.); (M.H.B.P.); (G.M.A.); (R.R.O.)
| | - Ruan R. Oliveira
- Institute of Biological Sciences, Federal University of Pará, Cardiovascular System Pharmacology and Toxicology Laboratory, Belém 66075-110, PA, Brazil; (K.E.R.); (P.R.G.); (M.H.B.P.); (G.M.A.); (R.R.O.)
| | - Cristine B. Amarante
- Coordination of Earth Sciences and Ecology, Museu Paraense Emílio Goeldi, Belem 66077-830, PA, Brazil;
| | - João P. M. Issa
- Department of Basic and Oral Biology, School of Dentistry of Ribeirao Preto, University of Sao Paulo (FORP/USP), Ribeirao Preto 14040-904, SP, Brazil; (J.P.M.I.); (R.F.G.)
| | - Raquel F. Gerlach
- Department of Basic and Oral Biology, School of Dentistry of Ribeirao Preto, University of Sao Paulo (FORP/USP), Ribeirao Preto 14040-904, SP, Brazil; (J.P.M.I.); (R.F.G.)
| | - Alejandro F. Prado
- Institute of Biological Sciences, Federal University of Pará, Cardiovascular System Pharmacology and Toxicology Laboratory, Belém 66075-110, PA, Brazil; (K.E.R.); (P.R.G.); (M.H.B.P.); (G.M.A.); (R.R.O.)
- Correspondence:
| |
Collapse
|
12
|
Parente JM, Blascke de Mello MM, Silva PHLD, Omoto ACM, Pernomian L, Oliveira ISD, Mahmud Z, Fazan R, Arantes EC, Schulz R, Castro MMD. MMP inhibition attenuates hypertensive eccentric cardiac hypertrophy and dysfunction by preserving troponin I and dystrophin. Biochem Pharmacol 2021; 193:114744. [PMID: 34453903 DOI: 10.1016/j.bcp.2021.114744] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 12/27/2022]
Abstract
PURPOSE Cardiac transition from concentric (C-LVH) to eccentric left ventricle hypertrophy (E-LVH) is a maladaptive response of hypertension. Matrix metalloproteinases (MMPs), in particular MMP-2, may contribute to tissue remodeling by proteolyzing extra- and intracellular proteins. Troponin I and dystrophin are two potential targets of MMP-2 examined in this study and their proteolysis would impair cardiac contractile function. We hypothesized that MMP-2 contributes to the decrease in troponin I and dystrophin in the hypertensive heart and thereby controls the transition from C-LVH to E-LVH and cardiac dysfunction. METHODS Male Wistar rats were divided into sham or two kidney-1 clip (2K-1C) hypertensive groups and treated with water (vehicle) or doxycycline (MMP inhibitor, 15 mg/kg/day) by gavage from the tenth to the sixteenth week post-surgery. Tail-cuff plethysmography, echocardiography, gelatin zymography, confocal microscopy, western blot, mass spectrometry, in silico protein analysis and immunofluorescence were performed. RESULTS 6 out of 23 2K-1C rats (26%) had E-LVH followed by reduced ejection fraction. The remaining had C-LVH with preserved cardiac function. Doxycycline prevented the transition from C-LVH to E-LVH. MMP activity is increased in C-LVH and E-LVH hearts which was inhibited by doxycycline. This effect was associated with an increase in troponin I cleavage products and a decline in dystrophin in the left ventricle of E-LVH rats, which was prevented by doxycycline. CONCLUSION Hypertension causes increased cardiac MMP-2 activity which proteolyzes troponin I and dystrophin, contributing to the transition from C-LVH to E-LVH and cardiac dysfunction.
Collapse
Affiliation(s)
- Juliana Montenegro Parente
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Marcela Maria Blascke de Mello
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Pedro Henrique Leite da Silva
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Ana Carolina Mieko Omoto
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Laena Pernomian
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Isadora Sousa de Oliveira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Zabed Mahmud
- Department of Biochemistry, 474 Medical Sciences Building, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Rubens Fazan
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Eliane Candiani Arantes
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Richard Schulz
- Departments of Pediatrics and Pharmacology, University of Alberta, Mazankowski Alberta Heart Institute, 462 Heritage Medical Research Center, T6G 2S2 Edmonton, AB, Canada
| | - Michele Mazzaron de Castro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil.
| |
Collapse
|
13
|
Cruz JDO, Silva AO, Ribeiro JM, Luizon MR, Ceron CS. Epigenetic Regulation of the N-Terminal Truncated Isoform of Matrix Metalloproteinase-2 (NTT-MMP-2) and Its Presence in Renal and Cardiac Diseases. Front Genet 2021; 12:637148. [PMID: 33732288 PMCID: PMC7959838 DOI: 10.3389/fgene.2021.637148] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/26/2021] [Indexed: 12/19/2022] Open
Abstract
Several clinical and experimental studies have documented a compelling and critical role for the full-length matrix metalloproteinase-2 (FL-MMP-2) in ischemic renal injury, progressive renal fibrosis, and diabetic nephropathy. A novel N-terminal truncated isoform of MMP-2 (NTT-MMP-2) was recently discovered, which is induced by hypoxia and oxidative stress by the activation of a latent promoter located in the first intron of the MMP2 gene. This NTT-MMP-2 isoform is enzymatically active but remains intracellular in or near the mitochondria. In this perspective article, we first present the findings about the discovery of the NTT-MMP-2 isoform, and its functional and structural differences as compared with the FL-MMP-2 isoform. Based on publicly available epigenomics data from the Encyclopedia of DNA Elements (ENCODE) project, we provide insights into the epigenetic regulation of the latent promoter located in the first intron of the MMP2 gene, which support the activation of the NTT-MMP-2 isoform. We then focus on its functional assessment by covering the alterations found in the kidney of transgenic mice expressing the NTT-MMP-2 isoform. Next, we highlight recent findings regarding the presence of the NTT-MMP-2 isoform in renal dysfunction, in kidney and cardiac diseases, including damage observed in aging, acute ischemia-reperfusion injury (IRI), chronic kidney disease, diabetic nephropathy, and human renal transplants with delayed graft function. Finally, we briefly discuss how our insights may guide further experimental and clinical studies that are needed to elucidate the underlying mechanisms and the role of the NTT-MMP-2 isoform in renal dysfunction, which may help to establish it as a potential therapeutic target in kidney diseases.
Collapse
Affiliation(s)
- Juliana de Oliveira Cruz
- Graduate Program in Genetics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Alessandra O Silva
- Department of Food and Drugs, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, Alfenas, Brazil
| | - Jessyca M Ribeiro
- Department of Food and Drugs, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, Alfenas, Brazil
| | - Marcelo R Luizon
- Graduate Program in Genetics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Carla S Ceron
- Department of Biological Sciences, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| |
Collapse
|
14
|
Corrêa JWDN, Prado CM, Riul ME, Araújo AV, Rossi MA, Bendhack LM. Reversion of cardiovascular remodelling in renovascular hypertensive 2K-1C rats by renin-angiotensin system inhibitors. Clin Exp Pharmacol Physiol 2020; 47:1965-1977. [PMID: 32688435 DOI: 10.1111/1440-1681.13384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES Evaluate whether the RAS dual blockade would induce additional beneficial effects on cardiovascular remodelling when compared to monotherapy in renal hypertensive two kidneys-one clip (2K-1C) rats. METHODS Hypertensive 2K-1C and normotensive (2K) rats were treated for 14 days with submaximal doses of losartan (LOS), enalapril (ENA), losartan plus enalapril (LOS + ENA) or vehicle (water). Blood pressure and some parameters of cardiovascular remodelling were evaluated. RESULTS Systolic blood pressure (SBP) was higher in 2K-1C (209 ± 3 mm Hg, P < .05) than in 2K (113 ± 1 mm Hg) rats. There was an additional effect in 2K-1C treated with LOS + ENA (153 ± 9 mm Hg) on lowering SBP when compared to LOS (184 ± 12 mm Hg) or ENA (177 ± 9 mm Hg). None of the treatments had effect on SBP in 2K rats. In 2K-1C, cardiomyocyte hypertrophy was reduced by all treatments, although the cardiac hypertrophy indexes remained unchanged. 2K-1C aortas presented medial thickening that was partially reduced by the treatments. Intimal hyperplasia observed in 2K-1C (15.56 ± 0.89 µm vs 8.24 ± 0.80 µm) was reversed by ENA (9.52 ± 0.45 µm) or LOS + ENA (8.17 ± 0.53 µm). Collagen deposition was increased in 2K-1C hearts (1.77 ± 0.16 vs 1.28 ± 0.09) and aortas (8.1 ± 0.6 vs 5.2 ± 0.2). Treatment with LOS reduced (1.12 ± 0.14%) and ENA (0.81 ± 0.11%) or LOS + ENA (0.86 ± 0.11%) additionally diminished collagen only in 2K-1C hearts. CONCLUSIONS Submaximal doses of ACEi and/or ARB have inhibitory actions on cardiac remodelling and vascular hypertrophy not entirely dependent on their effects on blood pressure normalization in renovascular hypertensive rats. Combined therapy produced additional reduction in blood pressure than monotherapy despite a similar inhibition on cardiovascular remodelling.
Collapse
Affiliation(s)
| | - Cibele Maria Prado
- Department of Pathology, School of Medicine of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Maria Elena Riul
- Department of Pathology, School of Medicine of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Alice Valença Araújo
- Nucleus of Public Health, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Vitória de Santo Antão, Brazil
| | - Marcos Antonio Rossi
- Department of Pathology, School of Medicine of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Lusiane Maria Bendhack
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil
| |
Collapse
|
15
|
Guimaraes DA, Batista RIM, Tanus-Santos JE. Nitrate and nitrite-based therapy to attenuate cardiovascular remodelling in arterial hypertension. Basic Clin Pharmacol Toxicol 2020; 128:9-17. [PMID: 32772466 DOI: 10.1111/bcpt.13474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/29/2020] [Accepted: 07/26/2020] [Indexed: 12/16/2022]
Abstract
Hypertension is a highly prevalent disease marked by vascular and cardiac maladaptive remodelling induced mainly by renin-angiotensin system activation followed by oxidative stress. Here, we briefly describe these damages and review the current evidence supporting a potential role for nitrate and nitrite as antihypertensive molecules that act via nitric oxide (NO) formation-dependent and NO formation-independent mechanisms and how nitrate/nitrite inhibits cardiovascular remodelling in hypertension. The renin-angiotensin system activation and oxidative stress converge to activate proteases involved in cardiovascular remodelling in hypertension. Besides these proteases, several investigations have demonstrated that reduced endogenous NO bioavailability is a central pathological event in hypertension. In this regard, nitrate/nitrite, long considered inert products of NO, is now known as physiological molecules able to reduce blood pressure in hypertensive patients and in different experimental models of hypertension. These effects are associated with the formation of NO and other NO-related molecules, which could induce S-nitrosylation of target proteins. However, it remains unclear whether S-nitrosylation is an essential mechanism for the anti-remodelling effects of nitrate/nitrite in hypertension. Moreover, nitrate/nitrite produces antioxidant effects associated with the inhibition of signalling pathways involved in cardiovascular remodelling. Together, these findings may help to establish nitrate and nitrite as effective therapies in hypertension-induced cardiovascular remodelling.
Collapse
Affiliation(s)
- Danielle A Guimaraes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Rose I M Batista
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| |
Collapse
|
16
|
do Prado AF, Bannwart CM, Shinkai VMT, de Souza Lima IM, Meschiari CA. Phyto-derived Products as Matrix Metalloproteinases Inhibitors in Cardiovascular Diseases. Curr Hypertens Rev 2020; 17:47-58. [PMID: 32386496 DOI: 10.2174/1573402116666200510011356] [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: 12/15/2019] [Revised: 02/22/2020] [Accepted: 03/09/2020] [Indexed: 11/22/2022]
Abstract
Matrix metalloproteinases (MMPs) are enzymes that present a metallic element in their structure. These enzymes are ubiquitously distributed and function as extracellular matrix (ECM) remodelers. MMPs play a broad role in cardiovascular biology regulating processes such as cell adhesion and function, cellular communication and differentiation, integration of mechanical force and force transmission, tissue remodeling, modulation of damaged-tissue structural integrity, cellular survival or apoptosis and regulation of inflammation-related cytokines and growth factors. MMPs inhibition and downregulation are correlated with minimization of cardiac damage, i.e., Chinese herbal medicine has shown to stabilize abdominal aorta aneurysm due to its antiinflammatory, antioxidant and MMP-2 and 9 inhibitory properties. Thus phyto-derived products rise as promising sources for novel therapies focusing on MMPs inhibition and downregulation to treat or prevent cardiovascular disorders.
Collapse
Affiliation(s)
- Alejandro F do Prado
- Structural Biology Laboratory, Biological Sciences Institute, Federal University of Para, Belem, PA, Brazil
| | - Cahy M Bannwart
- Structural Biology Laboratory, Biological Sciences Institute, Federal University of Para, Belem, PA, Brazil
| | - Victoria M T Shinkai
- Molecular and Cellular Neurochemistry Laboratory, Biological Sciences Institute, Federal University of Para, Belem, PA, Brazil
| | | | - César A Meschiari
- Health and Sports Science Center, Federal University of Acre, Rio Branco, AC, Brazil
| |
Collapse
|
17
|
Mendes AS, Blascke de Mello MM, Parente JM, Omoto ACM, Neto-Neves EM, Fazan R, Tanus-Santos JE, Castro MM. Verapamil decreases calpain-1 and matrix metalloproteinase-2 activities and improves hypertension-induced hypertrophic cardiac remodeling in rats. Life Sci 2020; 244:117153. [DOI: 10.1016/j.lfs.2019.117153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/05/2019] [Accepted: 12/08/2019] [Indexed: 12/30/2022]
|
18
|
Nascimento RA, Possomato-Vieira JS, Bonacio GF, Rizzi E, Dias-Junior CA. Reductions of Circulating Nitric Oxide are Followed by Hypertension during Pregnancy and Increased Activity of Matrix Metalloproteinases-2 and -9 in Rats. Cells 2019; 8:cells8111402. [PMID: 31703340 PMCID: PMC6912623 DOI: 10.3390/cells8111402] [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: 08/08/2019] [Accepted: 09/03/2019] [Indexed: 12/14/2022] Open
Abstract
Hypertensive pregnancy has been associated with reduced nitric oxide (NO), bioavailability, and increased activity of matrix metalloproteinases (MMPs). However, it is unclear if MMPs activation is regulated by NO during pregnancy. To this end, we examined activity of MMP-2 and MMP-9 in plasma, placenta, uterus and aorta, NO bioavailability, oxidative stress, systolic blood pressure (SBP), and fetal-placental development at the early, middle, and late pregnancy stages in normotensive and Nω-Nitro-L-arginine methyl-ester (L-NAME)-induced hypertensive pregnancy in rats. Reduced MMP-2 activity in uterus, placenta, and aorta and reduced MMP-9 activity in plasma and placenta with concomitant increased NO levels were found in normotensive pregnant rats. By contrast, increased MMP-2 activity in uterus, placenta, and aorta, and increased MMP-9 activity in plasma and placenta with concomitant reduced NO levels were observed in hypertensive pregnant rats. Also, elevated oxidative stress was displayed by hypertensive pregnant rats at the middle and late stages. These findings in the L-NAME-treated pregnant rats were also followed by increases in SBP and associated with fetal growth restrictions at the middle and late pregnancy stages. We concluded that NO bioavailability may regulate MMPs activation during normal and hypertensive pregnancy.
Collapse
Affiliation(s)
- Regina A. Nascimento
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University – UNESP, Botucatu, Sao Paulo 18.618-689, Brazil; (R.A.N.); (J.S.P.-V.)
| | - Jose S. Possomato-Vieira
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University – UNESP, Botucatu, Sao Paulo 18.618-689, Brazil; (R.A.N.); (J.S.P.-V.)
| | - Giselle F. Bonacio
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo 14096-900, Brazil; (G.F.B.); (E.R.)
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo 14096-900, Brazil; (G.F.B.); (E.R.)
| | - Carlos A. Dias-Junior
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University – UNESP, Botucatu, Sao Paulo 18.618-689, Brazil; (R.A.N.); (J.S.P.-V.)
- Correspondence: ; Tel.: +55 14 3880-0214
| |
Collapse
|
19
|
Blascke de Mello MM, Parente JM, Schulz R, Castro MM. Matrix metalloproteinase (MMP)-2 activation by oxidative stress decreases aortic calponin-1 levels during hypertrophic remodeling in early hypertension. Vascul Pharmacol 2019; 116:36-44. [PMID: 30339939 DOI: 10.1016/j.vph.2018.10.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/04/2018] [Accepted: 10/12/2018] [Indexed: 02/02/2023]
Abstract
Hypertension is characterized by maladaptive vascular remodeling and enhanced oxidative stress in the vascular wall. Peroxynitrite may directly activate latent matrix metalloproteinase (MMP)-2 in vascular smooth muscle cells (VSMC) by its S-glutathiolation. MMP-2 may then proteolyze calponin-1 in aortas from hypertensive animals, which stimulates VSMC proliferation and medial hypertrophy. Calponin-1 is an intracellular protein which helps to maintain VSMC in their differentiated (contractile) phenotype. The present study therefore investigated whether aortic MMP-2 activity is increased by oxidative stress in early hypertension and then contributes to hypertrophic arterial remodeling by reducing the levels of calponin-1. Male Wistar rats were submitted to the two kidney, one clip (2 K-1C) model of hypertension or sham surgery and were treated daily with tempol (18 mg/kg/day) or its vehicle (water) by gavage from the third to seventh day post-surgery. Systolic blood pressure (SBP) was daily assessed by tail-cuff plethysmography. After one week, aortas were removed to perform morphological analysis with hematoxylin and eosin staining and to analyze reactive oxygen‑nitrogen species levels by dihydroethidium and immunohistochemistry for nitrotyrosine. MMP-2 activity was analyzed by in situ and gelatin zymography and its S-glutathiolation was analyzed by Western blot for MMP-2 of anti-glutathione immunoprecipitates. Calponin-1 levels were identified in aortas by immunofluorescence. SBP increased by approximately 50 mmHg at the first week in 2 K-1C rats which was unaffected by tempol. However, tempol ameliorated the hypertension-induced increase in arterial media-to-lumen ratio and hypertrophic remodeling. Tempol also decreased hypertension-induced aortic oxidative stress and the enhanced MMP-2 activity. S-glutathiolation may be a potential mechanism by which oxidative stress activates MMP-2 in aortas of 2 K-1C rats. Furthermore, calponin-1 was decreased in aortas from 2 K-1C rats and tempol prevented this. In conclusion, oxidative stress may contribute to the increase in aortic MMP-2 activity, possibly by S-glutathiolation, and this may result in calponin-1 loss and maladaptive vascular remodeling in early hypertension.
Collapse
Affiliation(s)
- Marcela M Blascke de Mello
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900 Ribeirao Preto, SP, Brazil
| | - Juliana M Parente
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900 Ribeirao Preto, SP, Brazil
| | - Richard Schulz
- Departments of Pediatrics and Pharmacology, University of Alberta, Mazankowski Alberta Heart Institute, 462 Heritage Medical Research Center, T6G 2S2 Edmonton, Canada
| | - Michele M Castro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900 Ribeirao Preto, SP, Brazil.
| |
Collapse
|
20
|
Wang J, Yu Q, Dai M, Zhang Y, Cao Q, Luo Q, Tan T, Zhou Y, Shu L, Bao M. Carotid baroreceptor stimulation improves cardiac performance and reverses ventricular remodelling in canines with pacing-induced heart failure. Life Sci 2019; 222:13-21. [DOI: 10.1016/j.lfs.2019.02.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/21/2019] [Accepted: 02/21/2019] [Indexed: 02/02/2023]
|
21
|
Nascimento RA, Possomato-Vieira JS, Gonçalves-Rizzi VH, Bonacio GF, Rizzi E, Dias-Junior CA. Hypertension, augmented activity of matrix metalloproteinases-2 and -9 and angiogenic imbalance in hypertensive pregnancy are attenuated by doxycycline. Eur J Pharmacol 2018; 840:60-69. [PMID: 30336141 DOI: 10.1016/j.ejphar.2018.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/10/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023]
Abstract
Preeclampsia is manifested as maternal hypertension and fetal growth restriction. Matrix metalloproteinases (MMPs) are involved in hypertension and doxycycline reduces blood pressure by inhibition of MMPs. Moreover, excessive levels of MMPs and reduced nitric oxide (NO) bioavailability have been related to preeclampsia. We investigated the involvement of MMPs in hypertension in pregnancy induced by Nω-Nitro-L-arginine methyl ester (L-NAME) in rats. To this end, zimography was performed to evaluate the activity of MMPs -2 and -9 in placenta, uterus and thoracic aorta, and systolic blood pressure, feto-placental development and metabolites of NO were evaluated. Also, plasma antioxidant capacity, plasma levels of soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PLGF) were examined. Doxycycline prevented hypertensive pregnancy and significant reductions in number of pups induced by L-NAME. Low NO bioavailability was found in hypertensive pregnant rats treated (or not) with doxycycline. Increased activity of placental MMP-2 and MMP-9 and uterine MMP-2 were attenuated by doxycycline. MMP-2 activity of thoracic aorta showed no change after hypertension. Increases in PLGF with concomitant decreases in sFlt-1 levels were found with doxycycline treatment. Also, plasma antioxidant capacity was improved with doxycycline. Also, elevations of plasma antioxidant capacity were observed in hypertensive rats treated with doxycycline. Therefore, we suggest that L-NAME reduced NO and this triggered the increases in MMP-2 and -9 activities during hypertensive pregnancy. Importantly, increases in MMPs activation and angiogenic imbalance were attenuated by doxycycline and these effects were associated with decreases in systolic blood pressure.
Collapse
Affiliation(s)
- Regina A Nascimento
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil
| | - José S Possomato-Vieira
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil
| | - Victor H Gonçalves-Rizzi
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil
| | - Gisele F Bonacio
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo, Brazil
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo, Brazil
| | - Carlos A Dias-Junior
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil.
| |
Collapse
|
22
|
Activation of TP receptors induces high release of PGI2 in coronary arteries of renal hypertensive rats. J Mol Cell Cardiol 2018; 122:125-133. [DOI: 10.1016/j.yjmcc.2018.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 08/02/2018] [Accepted: 08/08/2018] [Indexed: 12/19/2022]
|
23
|
Li B, Zhou W, Yang X, Zhou Y, Tan Y, Yuan C, Song Y, Chen X, Zhang W. The CD147/MMP-2 signaling pathway may regulate early stage cardiac remodelling in spontaneously hypertensive rats. Clin Exp Pharmacol Physiol 2016; 43:1125-1133. [PMID: 27451961 DOI: 10.1111/1440-1681.12626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 01/20/2023]
Affiliation(s)
- Bowei Li
- Department of Internal Cardiology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Wanxing Zhou
- Department of Internal Cardiology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Xiaorong Yang
- Department of Clinical Laboratory; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Yuliang Zhou
- Department of Internal Cardiology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Yongjing Tan
- Department of Internal Cardiology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Congcong Yuan
- Department of Internal Cardiology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Yulan Song
- Department of Pathology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| | - Xiao Chen
- The School of Life Science of Guang Dong Pharmaceutical University; Guangzhou China
| | - Wei Zhang
- Department of Internal Cardiology; The First Affiliated Hospital of Guang Dong Pharmaceutical University (School of Clinical Medicine); Guangzhou China
| |
Collapse
|
24
|
Belo VDA, Parente JM, Tanus-Santos JE, Castro MM. Matrix metalloproteinase (MMP)-2 decreases calponin-1 levels and contributes to arterial remodeling in early hypertension. Biochem Pharmacol 2016; 118:50-58. [PMID: 27531060 DOI: 10.1016/j.bcp.2016.08.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 08/12/2016] [Indexed: 01/27/2023]
Abstract
Increased matrix metalloproteinase (MMP)-2 is implicated in the vascular remodeling of hypertension. Calponin-1 is a contractile protein, and its absence is associated with vascular smooth muscle cell (VSMC) phenotype switch, which leads to migration and remodeling. We evaluated whether increased MMP-2 activity precedes chronic vascular remodeling by decreasing calponin-1 and inducing VSMC proliferation. Sham or two kidney-one clip (2K1C) rats were treated with doxycycline at 30mg/kg/day. Systolic blood pressure was increased in the 2K1C rats after 1 and 2weeks post-surgery, and doxycycline was effective to reduce it only at 2weeks of hypertension (p<0.05). Increased activity of MMP-2 was observed in aortas from 2K1C at 1 and 2weeks of hypertension, followed by increased VSMC proliferation, and those effects were abolished by treating 2K1C rats with doxycycline (p<0.05). Increased aortic media to lumen ratio started to emerge in 2K1C rats at 1week of hypertension, and it was established by 2weeks. MMP-2 and calponin-1 co-localized in the cytosol of VSMC. Aortas from 2K1C rats showed a significant reduction in calponin-1 levels at 1week of hypertension, and doxycycline prevented its loss (p<0.05). However, at 2weeks of hypertension, calponin-1 was upregulated in 2K1C (p<0.05 vs. Sham groups). The mRNA levels of calponin-1 were not altered in the aortas of 2K1C at 1week of hypertension. MMP-2 may contribute to the post-translational decrease in calponin-1, thus culminating in hypertension-induced maladaptive arterial remodeling.
Collapse
MESH Headings
- Animals
- Aorta
- Arteries/enzymology
- Arteries/metabolism
- Arteries/pathology
- Biomarkers/metabolism
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Cell Proliferation
- Cytosol/enzymology
- Cytosol/metabolism
- Cytosol/pathology
- Disease Progression
- Endothelium, Vascular/enzymology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Gene Expression Regulation
- Male
- Matrix Metalloproteinase 2/metabolism
- Microfilament Proteins/genetics
- Microfilament Proteins/metabolism
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Nuclear Proteins/metabolism
- Prehypertension/metabolism
- Prehypertension/pathology
- Prehypertension/physiopathology
- Proteolysis
- RNA, Messenger/metabolism
- Random Allocation
- Rats, Wistar
- Trans-Activators/metabolism
- Vascular Remodeling
- Calponins
Collapse
Affiliation(s)
- Vanessa de Almeida Belo
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Juliana Montenegro Parente
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - José Eduardo Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Michele M Castro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil.
| |
Collapse
|
25
|
Belo VA, Guimarães DA, Castro MM. Matrix Metalloproteinase 2 as a Potential Mediator of Vascular Smooth Muscle Cell Migration and Chronic Vascular Remodeling in Hypertension. J Vasc Res 2016; 52:221-31. [PMID: 26731549 DOI: 10.1159/000441621] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 10/10/2015] [Indexed: 11/19/2022] Open
Abstract
For vascular remodeling in hypertension, it is essential that vascular smooth muscle cells (VSMCs) reshape in order to proliferate and migrate. The extracellular matrix (ECM) needs to be degraded to favor VSMC migration. Many proteases, including matrix metalloproteinases (MMPs), contribute to ECM proteolysis and VSMC migration. Bioactive peptides, hemodynamic forces and reactive oxygen-nitrogen species regulate MMP-2 expression and activity. Increased MMP-2 activity contributes to hypertension-induced maladaptive arterial changes and sustained hypertension. New ECM is synthesized to supply VSMCs with bioactive mediators, which stimulate hypertrophy. MMP-2 stimulates the interaction of VSMCs with newly formed ECM, which triggers intracellular signaling via integrins to induce a phenotypic switch and persistent migration. VSMCs switch from a contractile to a synthetic phenotype in order to migrate and contribute to vascular remodeling in hypertension. MMPs also disrupt growth factors bound to ECM, thus contributing to their capacity to regulate VSMC migration. This review sheds light on the proteolytic effects of MMP-2 on ECM and non-ECM substrates in the vasculature and how these effects contribute to VSMC migration in hypertension. The inhibition of MMP activity as a therapeutic target may make it possible to reduce arterial maladaptation caused by hypertension and prevent the resulting fatal cardiovascular events.
Collapse
Affiliation(s)
- V A Belo
- Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sx00E3;o Paulo, Ribeirao Preto, Brazil
| | | | | |
Collapse
|
26
|
Sun Y, Huang ZY, Wang ZH, Li CP, Meng XL, Zhang YJ, Su F, Ma N. TGF-β1 and TIMP-4 regulate atrial fibrosis in atrial fibrillation secondary to rheumatic heart disease. Mol Cell Biochem 2015; 406:131-8. [PMID: 25971370 DOI: 10.1007/s11010-015-2431-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 05/05/2015] [Indexed: 10/23/2022]
Abstract
To investigate the involvement of transforming growth factor-β1 (TGF-β1) and tissue inhibitor of metalloproteinase 4 (TIMP-4) in influencing the severity of atrial fibrosis in rheumatic heart disease (RHD) patients with atrial fibrillation (AF). The degree of myocardial fibrosis was evaluated using Masson staining. The expression levels of TGF-β1, TIMP-4, matrix metalloproteinase-2 (MMP-2), type I collagen, and type III collagen were estimated by Western blot analysis. Additionally, TGF-β1 and TIMP-4 mRNA levels were quantified by qRT-PCR. The effect of TGF-β1 stimulation on TIMP-4 expression was assessed by in vitro stimulation of freshly isolated human atrial fibroblasts with recombinant human TGF-β1, followed by Western blot analysis to detect changes in TIMP-4 levels. Masson stain revealed that the left atrial diameter and collagen volume fraction were obviously increased in AF patients, compared to sinus rhythm (SR) controls (both P < 0.05). Western blot analysis showed significantly elevated levels of the AF markers MMP-2, type I collagen, and type III collagen in the AF group, in comparison to the SR controls (all P < 0.05). In the AF group, TGF-β1 expression was relatively higher, while TIMP-4 expression was apparently lower than the SR group (all P < 0.05). TIMP-4 expression level showed a negative association with TGF-β1 expression level (r = -0.98, P < 0.01) and TGF-β1 stimulation of atrial fibroblasts led to a sharp decrease in TIMP-4 protein level. Increased TGF-β1 expression and decreased TIMP-4 expression correlated with atrial fibrosis and ECM changes in the atria of RHD patients with AF. Notably, TGF-β1 suppressed TIMP-4 expression, suggesting that selective TGF-β1 inhibitors may be useful therapeutic agents.
Collapse
Affiliation(s)
- Yu Sun
- Cardiovascular Department, Second Affiliated Hospital and Second Clinical Medical College, Fujian Medical University, Zhongshan North Road No.34, Quanzhou, 362000, Fujian Province, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Abstract
It is well established that cardiac remodeling plays a pivotal role in the development of heart failure, a leading cause of death worldwide. Meanwhile, sympathetic hyperactivity is an important factor in inducing cardiac remodeling. Therefore, an in-depth understanding of beta-adrenoceptor signaling pathways would help to find better ways to reverse the adverse remodeling. Here, we reviewed five pathways, namely mitogen-activated protein kinase signaling, Gs-AC-cAMP signaling, Ca(2+)-calcineurin-NFAT/CaMKII-HDACs signaling, PI3K signaling and beta-3 adrenergic signaling, in cardiac remodeling. Furthermore, we constructed a cardiac-remodeling-specific regulatory network including miRNA, transcription factors and target genes within the five pathways. Both experimental and clinical studies have documented beneficial effects of beta blockers in cardiac remodeling; nevertheless, different blockers show different extent of therapeutic effect. Exploration of the underlying mechanisms could help developing more effective drugs. Current evidence of treatment effect of beta blockers in remodeling was also reviewed based upon information from experimental data and clinical trials. We further discussed the mechanism of how beta blockers work and why some beta blockers are more potent than others in treating cardiac remodeling within the framework of cardiac remodeling network.
Collapse
|
28
|
Cau SBA, Guimaraes DA, Rizzi E, Ceron CS, Gerlach RF, Tanus-Santos JE. The Nuclear Factor kappaB Inhibitor Pyrrolidine Dithiocarbamate Prevents Cardiac Remodelling and Matrix Metalloproteinase-2 Up-Regulation in Renovascular Hypertension. Basic Clin Pharmacol Toxicol 2015; 117:234-41. [PMID: 25816715 DOI: 10.1111/bcpt.12400] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/19/2015] [Indexed: 12/15/2022]
Abstract
Imbalanced matrix metalloproteinase (MMP) activity is involved in hypertensive cardiac hypertrophy. Pharmacological inhibition of nuclear factor kappaB (NF-кB) with pyrrolidine dithiocarbamate (PDTC) can prevent MMP up-regulation. We suggested that treatment with PDTC could prevent 2-kidney, 1-clip (2K1C) hypertension-induced left ventricular remodelling. Sham-operated controls or 2K1C rats with hypertension received either vehicle or PDTC (100 mg/kg/day) by gavage for 8 weeks. Systolic blood pressure was monitored every week. Histological assessment of left ventricles was carried out with haematoxylin/eosin sections, and fibrosis was quantified in picrosirius red-stained sections. Oxidative stress was evaluated in heart samples with the dihydroethidium probe. Cardiac MMP activity was determined by in situ zymography, and cardiac MMP-2 was assessed by immunofluorescence. 2K1C surgery significantly increased systolic blood pressure in the 2K1C vehicle. PDTC exerted antihypertensive effects after 2 weeks of treatment. Histology revealed increased left ventricular and septum wall thickness associated with augmented myocyte diameter in hypertensive rats, which were reversed by treatment with PDTC. Hypertensive rats developed pronounced cardiac fibrosis with increased interstitial collagen area, increased cardiac reactive oxygen species levels, gelatinase activity and MMP-2 expression. PDTC treatment decreased these alterations. These findings show that PDTC modulates myocardial MMP-2 expression and ameliorates cardiac remodelling in renovascular hypertension. These results suggest that interfering with MMP expression at transcriptional level may be an interesting strategy in the therapy of organ damage associated with hypertension.
Collapse
Affiliation(s)
- Stefany B A Cau
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Danielle A Guimaraes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Elen Rizzi
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Carla S Ceron
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Raquel F Gerlach
- Department of Morphology, Estomatology and Physiology, Dental School of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| |
Collapse
|
29
|
Belo VA, Lacchini R, Miranda JA, Lanna CMM, Souza-Costa DC, Tanus-Santos JE. Increased activity of MMP-2 in hypertensive obese children is associated with hypoadiponectinemia. Obesity (Silver Spring) 2015; 23:177-82. [PMID: 25407352 DOI: 10.1002/oby.20939] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 09/26/2014] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To compare the circulating levels of MMP-2 and TIMP-2 and the MMP-2/TIMP-2 ratio in control, obese, and obese hypertensive children and adolescents and to assess whether hypoadiponectinemia is associated with MMP-2 and TIMP-2 levels and MMP-2/TIMP-2 ratios. METHODS Studies were carried out with 53 control, 73 obese, and 29 obese hypertensive children and adolescents in this cross-sectional study. Adiponectin and TIMP-2 concentrations were measured by ELISA. MMP-2 concentrations were measured by gelatin zymography. Multiple linear regression analysis was carried out to assess the effects of adiponectin on MMP-2 and TIMP-2 levels and MMP-2/TIMP-2 ratios. RESULTS The obese hypertensive group had the lowest adiponectin levels among groups (P < 0.05) while obese subjects had lower adiponectin levels than control subjects (P < 0.05). Obese hypertensive subjects also had higher circulating MMP-2 concentrations than obese subjects (P < 0.05) and had the highest MMP-2/TIMP-2 ratios among groups (P < 0.05). Moreover, obese/hypertensive subjects had the lowest TIMP-2 levels among groups (P < 0.05). A multiple linear regression analysis showed that MMP-2 levels and MMP-2/TIMP-2 ratios are negatively associated with adiponectin levels (P = 0.034 and P = 0.011, respectively) while TIMP-2 levels is positively associated with adiponectin levels (P = 0.013). CONCLUSIONS Increased activity of MMP-2 (MMP-2/TIMP-2 ratio) and reduced TIMP-2 levels may play an important role in clinical hypertension of childhood obesity. Additionally, hypoadiponectinemia may contribute to increased activity of MMP-2 in obese/hypertensive children and adolescents.
Collapse
Affiliation(s)
- Vanessa A Belo
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | | | | | | | | | | |
Collapse
|
30
|
Ding WX, Dong YB, Ding N, Zhang XF, Zhang SJ, Zhang XL, Liu JN, Lu G. Adiponectin protects rat heart from left ventricular remodeling induced by chronic intermittent hypoxia via inhibition of TGF-β/smad2/3 pathway. J Thorac Dis 2014; 6:1278-84. [PMID: 25276370 DOI: 10.3978/j.issn.2072-1439.2014.07.44] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 07/21/2014] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Obstructive sleep apnea syndrome (OSAS) is associated with many cardiovascular disorders. Chronic intermittent hypoxia (CIH) is the primary player in OSAS of the many associated factors. This study was in order to investigate the effects of the Adiponectin (Ad) on left ventricular remodeling induced by CIH. METHODS Forty-five rats were randomly divided into three groups: normal control (NC) group, CIH group and CIH plus Ad supplemented (CIH + Ad) group. After 35 days' CIH exposure, masson analysis was used to detect the left ventricular fibrosis and western blot was used to measure the protein expression of collagen I, collagen III and TGF-β/smad2/3 pathway. Gene analysis by RT-PCR was used to study the MMP2 and TIMP2. RESULTS After CIH exposure, the fibrosis of left ventricular in CIH group was significantly remarkable than that in both NC and CIH + Ad groups (P<0.05), although statistical difference existed between NC and CIH + Ad groups (P<0.05). In addition, the protein expression of collagen I as well as collagen III and the ratio of mRNA levels of MMP2/TIMP2 were the highest in CIH group but the lowest in NC group, with CIH + Ad group in between. There was a significant difference among three groups (all P<0.05). The TGF-β/smad2/3 pathway was activated obviously in CIH group, but less noticeably in CIH + Ad group (P<0.05) with a significant difference in the two groups. CONCLUSIONS The present study showed that Ad could ameliorate the left ventricular remodeling induced by CIH via inhibition of the expression of TGF-β/smad2/3 pathway.
Collapse
Affiliation(s)
- Wen-Xiao Ding
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Yan-Bin Dong
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Ning Ding
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Xiao-Feng Zhang
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Shi-Jiang Zhang
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Xi-Long Zhang
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Jian-Nan Liu
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| | - Gan Lu
- 1 Department of Respiratory Medicine, 2 Department of Cardiothoracic Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China ; 3 Department of Respiratory Diseases, Jiangsu Geriatric Hospital, Nanjing 210024, China
| |
Collapse
|
31
|
Rizzi E, Guimaraes DA, Ceron CS, Prado CM, Pinheiro LC, Martins-Oliveira A, Gerlach RF, Tanus-Santos JE. β1-Adrenergic blockers exert antioxidant effects, reduce matrix metalloproteinase activity, and improve renovascular hypertension-induced cardiac hypertrophy. Free Radic Biol Med 2014; 73:308-17. [PMID: 24933619 DOI: 10.1016/j.freeradbiomed.2014.05.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 01/13/2023]
Abstract
Hypertension induces left-ventricular hypertrophy (LVH) by mechanisms involving oxidative stress and unbalanced cardiac matrix metalloproteinase (MMP) activity. We hypothesized that β1-adrenergic receptor blockers with antioxidant properties (nebivolol) could reverse hypertension-induced LVH more effectively than conventional β1-blockers (metoprolol) when used at doses that exert similar antihypertensive effects. Two-kidney one-clip (2K1C) hypertension was induced in male Wistar rats. Six weeks after surgery, hypertensive and sham rats were treated with nebivolol (10 mg kg(-1)day(-1)) or metoprolol (20 mg kg(-1)day(-1)) for 4 weeks. Systolic blood pressure was monitored weekly by tail-cuff plethysmography. LV structural changes and fibrosis were studied in hematoxylin/eosin- and picrosirius-stained sections, respectively. Cardiac MMP levels and activity were determined by in situ zymography, gel zymography, and immunofluorescence. Dihydroethidium and lucigenin-derived chemiluminescence assays were used to assess cardiac reactive oxygen species (ROS) production. Nitrotyrosine levels were determined in LV samples by immunohistochemistry and green fluorescence and were evaluated using the ImageJ software. Cardiac protein kinase B/Akt (AKT) phosphorylation state was assessed by Western blot. Both β-blockers exerted similar antihypertensive effects and attenuated hypertension-induced cardiac remodeling. Both drugs reduced myocyte hypertrophy and collagen deposition in 2K1C rats. These effects were associated with lower cardiac ROS and nitrotyrosine levels and attenuation of hypertension-induced increases in cardiac MMP-2 levels and in situ gelatinolytic activity after treatment with both β-blockers. Whereas hypertension increased AKT phosphorylation, no effects were found with β-blockers. In conclusion, we found evidence that two β1-blockers with different properties attenuate hypertension-induced LV hypertrophy and cardiac collagen deposition in association with significant cardiac antioxidant effects and MMP-2 downregulation, thus suggesting a critical role for β1-adrenergic receptors in mediating those effects. Nebivolol is not superior to metoprolol, at least with respect to their capacity to reverse hypertension-induced LVH.
Collapse
Affiliation(s)
- Elen Rizzi
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Danielle A Guimaraes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Carla S Ceron
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Cibele M Prado
- Department of Pathology, Ribeirao Preto Medical School, University of Sao Paulo, 14049-900 Ribeirao Preto, SP, Brazil
| | - Lucas C Pinheiro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Alisson Martins-Oliveira
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Raquel F Gerlach
- Department of Morphology, Estomatology, and Physiology, Ribeirao Preto Dental School, University of Sao Paulo, 14049-900 Ribeirao Preto, SP, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil.
| |
Collapse
|
32
|
Azevedo A, Prado AF, Antonio RC, Issa JP, Gerlach RF. Matrix metalloproteinases are involved in cardiovascular diseases. Basic Clin Pharmacol Toxicol 2014; 115:301-14. [PMID: 24974977 DOI: 10.1111/bcpt.12282] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 06/26/2014] [Indexed: 12/18/2022]
Abstract
This MiniReview describes the essential biochemical and molecular aspects of matrix metalloproteinases (MMPs) and briefly discusses how they engage in different diseases, with particular emphasis on cardiovascular diseases. There is compelling scientific evidence that many MMPs, especially MMP-2, play important roles in the development of cardiovascular diseases; inhibition of these enzymes is beneficial to many cardiovascular conditions, sometimes precluding or postponing end-organ damage and fatal outcomes. Conducting comprehensive discussions and further studies on how MMPs participate in cardiovascular diseases is important, because inhibition of these enzymes may be an alternative or an adjuvant for current cardiovascular disease therapy.
Collapse
Affiliation(s)
- Aline Azevedo
- Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | | | | | | | | |
Collapse
|
33
|
Prescimone T, Tognotti D, Caselli C, Cabiati M, D'Amico A, Del Ry S, Giannessi D. Reappraisal of quantitative gel zymography for matrix metalloproteinases. J Clin Lab Anal 2014; 28:374-80. [PMID: 24648291 DOI: 10.1002/jcla.21696] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 09/16/2013] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND The determination of matrix metalloproteases (MMPs) is relevant in many pathophysiological conditions, especially if associated with extracellular matrix remodeling; however, the results obtained are closely linked to the method used and are not directly comparable. The aim of this study was to perform a reappraisal of quantitative gel zymography technique for MMPs in human plasma, to use for comparison with commercially available ELISA and in those experimental conditions where the MMP active form needs to be revealed. METHODS The critical methodological parameters of zymography were checked and a comparison with a routinely used ELISA was performed. RESULTS Sensitivity and reproducibility levels of zymography are suitable for detection of MMP-9 in human plasma, providing results closely related to those obtained by ELISA. CONCLUSIONS Analytical parameters of zymography were suitable for detection of MMPs in human plasma. Quantitative zymography for MMPs is an alternative method for comparing the results of ELISA widely employed for MMP determination, thus reducing the discrepancies between laboratories regarding gelatinase assay.
Collapse
Affiliation(s)
- Tommaso Prescimone
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa, Italy
| | | | | | | | | | | | | |
Collapse
|
34
|
Muhlestein JB. Adverse left ventricular remodelling after acute myocardial infarction: is there a simple treatment that really works? Eur Heart J 2013; 35:144-6. [DOI: 10.1093/eurheartj/eht505] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
|
35
|
Kuntze LB, Antonio RC, Izidoro-Toledo TC, Meschiari CA, Tanus-Santos JE, Gerlach RF. Captopril and Lisinopril Only Inhibit Matrix Metalloproteinase-2 (MMP-2) Activity at Millimolar Concentrations. Basic Clin Pharmacol Toxicol 2013; 114:233-9. [DOI: 10.1111/bcpt.12151] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Luciana B. Kuntze
- Department of Pharmacology; Faculty of Medicine of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
| | - Raquel C. Antonio
- Department of Pharmacology; Faculty of Medicine of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
| | - Tatiane C. Izidoro-Toledo
- Department of Pharmacology; Faculty of Medicine of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
| | - Cesar A. Meschiari
- Department of Pharmacology; Faculty of Medicine of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
| | - Jose E. Tanus-Santos
- Department of Pharmacology; Faculty of Medicine of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
| | - Raquel F. Gerlach
- Department of Morphology and Physiology; Dental School of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
- Visiting Professor at the University of Pittsburgh; Pittsburgh PA USA
| |
Collapse
|
36
|
Mishra PK, Givvimani S, Chavali V, Tyagi SC. Cardiac matrix: a clue for future therapy. Biochim Biophys Acta Mol Basis Dis 2013; 1832:2271-6. [PMID: 24055000 DOI: 10.1016/j.bbadis.2013.09.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 09/04/2013] [Accepted: 09/06/2013] [Indexed: 12/30/2022]
Abstract
Cardiac muscle is unique because it contracts ceaselessly throughout the life and is highly resistant to fatigue. The marvelous nature of the cardiac muscle is attributed to its matrix that maintains structural and functional integrity and provides ambient micro-environment required for mechanical, cellular and molecular activities in the heart. Cardiac matrix dictates the endothelium myocyte (EM) coupling and contractility of cardiomyocytes. The matrix metalloproteinases (MMPs) and their tissue inhibitor of metalloproteinases (TIMPs) regulate matrix degradation that determines cardiac fibrosis and myocardial performance. We have shown that MMP-9 regulates differential expression of micro RNAs (miRNAs), calcium cycling and contractility of cardiomyocytes. The differential expression of miRNAs is associated with angiogenesis, hypertrophy and fibrosis in the heart. MMP-9, which is involved in the degradation of cardiac matrix and induction of fibrosis, is also implicated in inhibition of survival and differentiation of cardiac stem cells (CSC). Cardiac matrix is distinct because it renders mechanical properties and provides a framework essential for differentiation of cardiac progenitor cells (CPC) into specific lineage. Cardiac matrix regulates myocyte contractility by EM coupling and calcium transients and also directs miRNAs required for precise regulation of continuous and synchronized beating of cardiomyocytes that is indispensible for survival. Alteration in the matrix homeostasis due to induction of MMPs, altered expression of specific miRNAs or impaired signaling for contractility of cardiomyocytes leads to catastrophic effects. This review describes the mechanisms by which cardiac matrix regulates myocardial performance and suggests future directions for the development of treatment strategies in cardiovascular diseases.
Collapse
Affiliation(s)
- Paras Kumar Mishra
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | | | | | | |
Collapse
|
37
|
Gomes AC, Falcão-Pires I, Pires AL, Brás-Silva C, Leite-Moreira AF. Rodent models of heart failure: an updated review. Heart Fail Rev 2013; 18:219-49. [PMID: 22446984 DOI: 10.1007/s10741-012-9305-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Heart failure (HF) is one of the major health and economic burdens worldwide, and its prevalence is continuously increasing. The study of HF requires reliable animal models to study the chronic changes and pharmacologic interventions in myocardial structure and function and to follow its progression toward HF. Indeed, during the past 40 years, basic and translational scientists have used small animal models to understand the pathophysiology of HF and find more efficient ways of preventing and managing patients suffering from congestive HF (CHF). Each species and each animal model has advantages and disadvantages, and the choice of one model over another should take them into account for a good experimental design. The aim of this review is to describe and highlight the advantages and drawbacks of some commonly used HF rodents models, including both non-genetically and genetically engineered models, with a specific subchapter concerning diastolic HF models.
Collapse
Affiliation(s)
- A C Gomes
- Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal
| | | | | | | | | |
Collapse
|
38
|
Palei ACT, Granger JP, Tanus-Santos JE. Matrix metalloproteinases as drug targets in preeclampsia. Curr Drug Targets 2013; 14:325-34. [PMID: 23316964 DOI: 10.2174/1389450111314030004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 12/10/2012] [Accepted: 01/01/2013] [Indexed: 11/22/2022]
Abstract
Preeclampsia is an important syndrome complicating pregnancy. While the pathogenesis of preeclampsia is not entirely known, poor placental perfusion leading to widespread maternal endothelial dysfunction is accepted as a major mechanism. It has been suggested that altered placental expression of matrix metalloproteinases (MMPs) may cause shallow cytotrophoblastic invasion and incomplete remodeling of the spiral arteries. MMPs are also thought to link placental ischemia to the cardiovascular alterations of preeclampsia. In fact, MMPs may promote vasoconstriction and surface receptors cleavage affecting the vasculature. Therefore, the overall goal of this review article is to provide an overview of the pathophisiology of preeclampsia, more specifically regarding the role of MMPs in the pathogenesis of preeclampsia and the potential of MMP inhibitors as therapeutic options.
Collapse
Affiliation(s)
- Ana C T Palei
- aDepartment of Physiology and Biophysics, School of Medicine, University of Mississippi Medical Center, 2500 North State St., Jackson, MS 39216, USA
| | | | | |
Collapse
|
39
|
Cau SBA, Barato RC, Celes MR, Muniz JJ, Rossi MA, Tanus-Santos JE. Doxycycline Prevents Acute Pulmonary Embolism-Induced Mortality and Right Ventricular Deformation in Rats. Cardiovasc Drugs Ther 2013; 27:259-67. [DOI: 10.1007/s10557-013-6458-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
40
|
Tempol inhibits TGF-β and MMPs upregulation and prevents cardiac hypertensive changes. Int J Cardiol 2013; 165:165-73. [DOI: 10.1016/j.ijcard.2011.08.060] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 08/04/2011] [Accepted: 08/17/2011] [Indexed: 01/09/2023]
|
41
|
Rizzi E, Ceron CS, Guimaraes DA, Prado CM, Rossi MA, Gerlach RF, Tanus-Santos JE. Temporal changes in cardiac matrix metalloproteinase activity, oxidative stress, and TGF-β in renovascular hypertension-induced cardiac hypertrophy. Exp Mol Pathol 2013; 94:1-9. [PMID: 23073243 DOI: 10.1016/j.yexmp.2012.10.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/08/2012] [Accepted: 10/08/2012] [Indexed: 12/22/2022]
Abstract
Cardiovascular remodeling found in later phases of two-kidney, one-clip (2K1C) hypertension may involve key mechanisms particularly including MMP-2, oxidative stress, transforming growth factor-β (TGF-β), and inactivation of the endogenous MMP inhibitor, the tissue inhibitor of MMP (TIMP)-4. We examined whether temporal cardiac remodeling resulting from 2K1C hypertension occurs concomitantly with alterations in cardiac collagen, MMP activity, MMP-2, TIMP-4, TGF-β, and reactive oxygen species (ROS) levels during the development of 2K1C hypertension. Sham-operated and 2K1C hypertensive rats were studied after 15, 30, and 75 days of hypertension. Systolic blood pressure was monitored weekly. Left ventricle (LV) morphometry and fibrosis were evaluated in hematoxylin/eosin and picrosirius red-stained sections, respectively. Cardiac MMP-2 levels/activity was determined by gelatin zymography, immunofluorescence, and in situ zymography. TIMP-4 levels were determined by western blotting. Cardiac TGF-β levels were evaluated by immunofluorescence and ROS levels were evaluated with a dihydroethidium probe. 2K1C hypertension induced LV hypertrophy associated with augmented gelatinolytic activity at an early phase of hypertension and further increased after 75 days of hypertension. These alterations were associated with increased cardiac MMP-2, TGF-β, and ROS in hypertensive rats. Higher TIMP-4 levels were found in hypertensive rats only after 75 days after surgery. Our findings show that increased MMP-2 activity is associated with concomitant development of LV hypertrophy and increased TGF-β and ROS levels.
Collapse
Affiliation(s)
- Elen Rizzi
- Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | | | | | | | | | | | | |
Collapse
|
42
|
Belo VA, Luizon MR, Carneiro PC, Gomes VA, Lacchini R, Lanna CMM, Souza-Costa DC, Tanus-Santos JE. Effect of metabolic syndrome risk factors and MMP-2 genetic variations on circulating MMP-2 levels in childhood obesity. Mol Biol Rep 2012; 40:2697-704. [DOI: 10.1007/s11033-012-2356-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 12/09/2012] [Indexed: 01/23/2023]
|
43
|
Fontana V, Silva PS, Izidoro-Toledo TC, Biagi C, Oliveira EB, Gerlach RF, Tanus-Santos JE. Comprehensive Evaluation of the Effects of Enalapril on Matrix Metalloproteinases Levels in Hypertension. Cardiovasc Drugs Ther 2012; 26:511-9. [DOI: 10.1007/s10557-012-6420-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
44
|
Ferraz KC, Sousa-Santos O, Neto-Neves EM, Rizzi E, Muniz JJ, Gerlach RF, Tanus-Santos JE. Recombinant human matrix metalloproteinase-2 impairs cardiovascular β-adrenergic responses. Basic Clin Pharmacol Toxicol 2012; 112:103-9. [PMID: 22913757 DOI: 10.1111/bcpt.12001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 08/09/2012] [Indexed: 01/05/2023]
Abstract
Growing evidence supports the involvement of matrix metalloproteinases (MMPs) in the pathogenesis of many cardiovascular diseases. Particularly, imbalanced MMP-2 activity apparently plays a critical role in cardiovascular remodelling. While some studies have suggested that MMP-2 may affect the vascular tone and impair β-adrenoreceptor function, no previous study has examined the acute haemodynamic effects of MMP-2. We examined the effects of recombinant human MMP-2 (rhMMP-2) administered intravenously to anaesthetized lambs at baseline conditions and during β(1) -adrenergic cardiac stimulation with dobutamine. We used 26 anaesthetized male lambs in two study protocols. First, rhMMP-2 (220 ng/kg/min. over 60 min.) or vehicle was infused in the lambs, and no significant haemodynamic changes were found. Therefore, we infused dobutamine at 5 μg/kg/min. i.v. (or saline) over 180 min. in lambs that had received the same rhMMP-2 infusion preceded by doxycycline i.v. at 10 mg/kg (or saline). Plasma and cardiac MMP-2 levels were assessed by gelatin zymography, and gelatinolytic activity was assessed by spectrofluorimetry. Dobutamine decreased systemic vascular resistance index, and this effect was attenuated by rhMMP-2 infusion. Moreover, dobutamine increased the cardiac index and left ventricular dP/dt(max) , and these effects were attenuated by rhMMP-2. The previous administration of doxycycline blunted rhMMP-2-induced changes in dobutamine responses. While the infusion of rhMMP-2 did not increase plasma and cardiac MMP-2 levels, it increased cardiac gelatinolytic activity, and doxycycline blunted this effect. Our findings show that rhMMP-2 exerts no major haemodynamic effects in lambs. However, rhMMP-2 impairs the responses elicited by activation of β-adrenoreceptors.
Collapse
Affiliation(s)
- Karina C Ferraz
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | | | | | | | | | | | | |
Collapse
|
45
|
Gomes VA, Vieira CS, Jacob-Ferreira AL, Belo VA, Soares GM, França JB, Ferriani RA, Tanus-Santos JE. Oral contraceptive containing chlormadinone acetate and ethinylestradiol reduces plasma concentrations of matrix metalloproteinase-2 in women with polycystic ovary syndrome. Basic Clin Pharmacol Toxicol 2012; 111:211-6. [PMID: 22510229 DOI: 10.1111/j.1742-7843.2012.00895.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 04/10/2012] [Indexed: 12/28/2022]
Abstract
Biochemical markers of cardiovascular disease, including matrix metalloproteinases (MMPs), are altered in women with polycystic ovary syndrome (PCOS), with many of these alterations thought to be due to excess androgen concentrations. Despite oral contraceptives (OCs) being the first-line pharmacological treatment in women with PCOS and the importance of MMPs in many physiological conditions and pathological states, including cardiovascular diseases, no study has yet evaluated whether OCs alter plasma concentrations of MMPs. We therefore assessed whether treatment with an OC containing the anti-androgenic progestogen alters MMP profiles in women with PCOS. We analysed 20 women with PCOS who wanted hormonal contraception (OC-PCOS group), 20 ovulatory women who required hormonal contraception (OC-control group) and 20 ovulatory women who wanted non-hormonal contraception (non-OC-control group). OC consisted of cyclic use of 2 mg chlormadinone acetate/30 μg ethinylestradiol for 6 months. Plasma concentrations of MMP-2, MMP-9, TIMP-1 and TIMP-2 were measured by gelatin zymography or enzyme-linked immunoassays. OC treatment for 6 months significantly reduced plasma MMP-2 concentrations in the OC-control and OC-PCOS groups and TIMP-2 and TIMP-1 concentrations levels in the OC-control group (all p < 0.05), but had no effects on MMP-9 concentrations or on MMP-2/TIMP-2 and MMP-9/TIMP-1 ratios in any group (all p > 0.05). These findings indicated that long-term treatment with an OC containing chlormadinone acetate plus ethinylestradiol reduced plasma MMP-2 concentrations in both healthy and PCOS women. As the latter have imbalances in circulating matrix MMPs, treatment of these women with an OC may be beneficial.
Collapse
Affiliation(s)
- Valéria A Gomes
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Fontana V, Silva PS, Gerlach RF, Tanus-Santos JE. Circulating matrix metalloproteinases and their inhibitors in hypertension. Clin Chim Acta 2012; 413:656-62. [DOI: 10.1016/j.cca.2011.12.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 12/22/2011] [Accepted: 12/30/2011] [Indexed: 12/16/2022]
|
47
|
Marson BP, Poli de Figueiredo CE, Tanus-Santos JE. Imbalanced matrix metalloproteinases in cardiovascular complications of end-stage kidney disease: a potential pharmacological target. Basic Clin Pharmacol Toxicol 2012; 110:409-15. [PMID: 22313633 DOI: 10.1111/j.1742-7843.2012.00863.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Accepted: 01/11/2012] [Indexed: 11/30/2022]
Abstract
End-stage kidney disease (ESKD) is a major health problem associated with very high morbidity and mortality secondary to cardiovascular complications, especially in ESKD patients on dialysis. Therefore, exploring key mechanisms underlying cardiovascular alterations associated with ESKD may offer reasonable pharmacological targets that may benefit these patients. Imbalanced matrix metalloproteinases (MMP) activities have been implicated in many cardiovascular diseases, and growing evidence now indicates that excessive MMP activities contribute to cardiovascular complications in ESKD patients. However, there is no study on the effects of MMP inhibitors (MMPIs) in such patients. MMPIs may prevent against the vascular and cardiac changes associated with ESKD. In this MiniReview, we aimed at reviewing current evidence supporting the idea that pharmacological inhibition of imbalanced MMP activities in ESKD may decrease the morbidity and mortality associated with cardiovascular complications in ESKD patients. However, MMPs have variable effects during different phases of kidney disease, and therefore optimal timing for MMP inhibition during a disease process may vary significantly and is largely undetermined. While current research shows that MMPs play a role in the pathogenesis of the cardiovascular alterations found in ESKD patients, clinical studies are required to validate the idea of using MMPIs in ESKD.
Collapse
Affiliation(s)
- Bernardo P Marson
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | | | | |
Collapse
|
48
|
Marson BP, Lacchini R, Belo V, Dickel S, da Costa BP, Poli de Figueiredo CE, Tanus-Santos JE. Matrix metalloproteinase (MMP)-2 genetic variants modify the circulating MMP-2 levels in end-stage kidney disease. Am J Nephrol 2012; 35:209-15. [PMID: 22302011 DOI: 10.1159/000336108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 11/22/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) play important roles in the pathophysiology of renal diseases, and imbalanced MMP-2 and its endogenous inhibitor (the tissue inhibitor of metalloproteinases-2; TIMP-2) are implicated in the vascular alterations of end-stage kidney disease (ESKD) patients. We have examined whether MMP-2 gene polymorphisms and haplotypes modify MMP-2 and TIMP-2 levels in ESKD patients as well as the effects of hemodialysis on the concentrations of these biomarkers. METHODS We determined MMP-2 and TIMP-2 plasma levels by gelatin zymography and ELISA, respectively, in 98 ESKD patients and in 38 healthy controls. Genotypes for two relevant MMP-2 polymorphisms (C(-1306)T and C(-735)T in the promoter region) were determined by TaqMan(®) allele discrimination assay and real-time polymerase chain reaction. The software program PHASE 2.1 was used to estimate the haplotype frequencies. RESULTS We found increased plasma MMP-2 and TIMP-2 levels in ESKD patients compared to controls (p < 0.05), and hemodialysis decreased MMP-2 (but not TIMP-2) levels (p < 0.05). The T allele for the C(-735)T polymorphism and the C-T haplotype were associated with higher MMP-2 (but not TIMP-2) levels (p < 0.05), whereas the C(-1306)T had no effects. Hemodialysis decreased MMP-2 (but not TIMP-2) levels independently of MMP-2 genotypes or haplotypes (p < 0.05). CONCLUSIONS MMP-2 genotypes or haplotypes modify MMP-2 levels in ESKD patients, and may help to identify patients with increased MMP-2 activity in plasma. Hemodialysis reduces MMP-2 levels independently of MMP-2 genetic variants.
Collapse
Affiliation(s)
- Bernardo P Marson
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Brazil
| | | | | | | | | | | | | |
Collapse
|
49
|
Metzger IF, Sandrim VC, Tanus-Santos JE. Endogenous nitric oxide formation correlates negatively with circulating matrix metalloproteinase (MMP)-2 and MMP-9 levels in black subjects. Mol Cell Biochem 2011; 360:393-9. [PMID: 21956669 DOI: 10.1007/s11010-011-1079-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 09/16/2011] [Indexed: 11/29/2022]
Abstract
Deficient formation of endogenous nitric oxide (NO) contributes to cardiovascular diseases, and this may be associated with increased circulating levels of matrix metalloproteinase-9 (MMP-9), as previously shown in white subjects. Because interethnic differences exist with respect to risk factors, prevalence, and severity of cardiovascular diseases, we designed this study to examine whether the circulating levels of nitrites (a marker of endogenous NO formation) are associated with the plasma levels of MMP-9 and MMP-2 in healthy black subjects. We studied 198 healthy subjects self-reported as blacks not taking any medications. Venous blood samples were collected and plasma and whole blood nitrite levels were measured using an ozone-based chemiluminescence assay. Plasma MMP-2 and MMP-9 levels were determined by gelatin zymography. We found a positive correlation between plasma MMP-9 and MMP-2 levels (P < 0.0001, rs = 0.556). Interestingly, we found a negative relationship between the plasma MMP-9 levels and the plasma or whole blood nitrites levels (P = 0.04, rs = -0.149; and P < 0.0001, rs = -0.349, respectively). In parallel, we found similar negative relationships between plasma MMP-2 levels and plasma or whole blood nitrites levels (P = 0.02, rs = -0.172; and P < 0.0001, rs = -0.454, respectively). This is the first study to show that endogenous nitric oxide formation correlates negatively with the circulating levels of both MMP-2 and MMP-9 in black subjects. Our findings suggest a mechanistic link between deficient NO formation and increased MMPs levels, which may promote cardiovascular diseases.
Collapse
Affiliation(s)
- Ingrid F Metzger
- Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, SP, Ribeirao Preto, Brazil
| | | | | |
Collapse
|
50
|
Metzger IF, Luizon MR, Lacchini R, Tanus-Santos JE. Genetic variants in matrix metalloproteinase-9 gene modify metalloproteinase-9 levels in black subjects. DNA Cell Biol 2011; 31:504-10. [PMID: 21936677 DOI: 10.1089/dna.2011.1388] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Altered matrix metalloproteinases (MMPs) levels are involved in cardiovascular diseases and increased MMP-9 levels enhance the cardiovascular risk in apparently healthy subjects. We investigated the effects of MMP-9 gene polymorphisms and haplotypes on the circulating MMP-9 levels in healthy black subjects and the effects of an MMP-2 polymorphism on the plasma MMP-2 concentrations. We studied 190 healthy subjects, nonsmokers, self-reported as blacks (18-63 years). Genotypes for the MMP-2 C(-1306)T polymorphism and the MMP-9 C(-1562)T, 90(CA)(14-24) and Q279R polymorphisms (rs243865, rs3918242, rs2234681, and rs17576, respectively) were determined by TaqMan(®) Allele Discrimination assay and real-time polymerase chain reaction or restriction fragment length polymorphism. Alleles for the 90(CA)(14-24) polymorphism were grouped as low (L) when there were <21 and high (H) when there were ≥21 CA repeats. The plasma levels of MMP-2 and MMP-9 were determined by gelatin zymography. The software PHASE 2.1 was used to estimate the haplotypes frequencies. Although we found no effects of the MMP-9 C(-1562)T or the Q279R polymorphisms on MMP-9 levels, higher MMP-9 levels were associated with the HH genotype for the -90(CA)(14-24) polymorphism compared with the HL or LL genotypes. Lower MMP-9 levels were found in carriers of the CRL haplotype (combining the C, R, and L alleles for the MMP-9 polymorphisms) compared with the CRH haplotype. Consistent with this finding, the CRL haplotype was more commonly found in subjects with low MMP-9 levels. The MMP-2 C(-1306)T polymorphism had no effects on the plasma MMP-2 levels. Our results show that MMP-9 genetic variations modify MMP-9 levels in black subjects and may offer biochemical evidence implicating MMP-9 in the pathogenesis of cardiovascular diseases in blacks.
Collapse
Affiliation(s)
- Ingrid F Metzger
- Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | | | | | | |
Collapse
|