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1.
Ann Nutr Metab ; 80(4): 196-201, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38310860

RESUMO

INTRODUCTION: Childhood obesity is a global health problem that is associated with various metabolic complications, such as insulin resistance, type 2 diabetes, dyslipidemia, and cardiovascular diseases. The mechanisms underlying the development of insulin resistance in childhood obesity are not fully understood. Nephroblastoma overexpressed gene (NOV), also known as CCN3, is a member of the CCN family of matricellular proteins that modulate cell proliferation, differentiation, adhesion, migration, and survival. Previous studies have shown that NOV/CCN3 is involved in glucose metabolism and insulin signaling in various tissues and cell types. However, the role of NOV/CCN3 in childhood obesity and insulin resistance remains unclear. METHODS: In this study, we aimed to investigate the association between plasma NOV/CCN3 levels and insulin resistance in 58 obese and 43 non-obese children aged 6-12 years. We measured plasma NOV/CCN3 levels by enzyme-linked immunosorbent assay and assessed insulin resistance by homeostasis model assessment of insulin resistance (HOMA-IR). We also collected clinical and biochemical data, such as body mass index (BMI), waist circumference (WC), blood pressure (BP), fasting glucose (FG), fasting insulin (FI), lipid profile, and inflammatory markers. RESULTS: We found that plasma NOV/CCN3 levels were significantly higher in obese children than in non-obese children (p < 0.001) and positively correlated with BMI (r = 0.42, p < 0.001), WC (r = 0.38, p < 0.001), BP (r = 0.35, p < 0.001), FG (r = 0.31, p < 0.001), FI (r = 0.45, p < 0.001), HOMA-IR (r = 0.48, p < 0.001), triglycerides (r = 0.28, p < 0.001), low-density lipoprotein cholesterol (r = 0.26, p < 0.001), and C-reactive protein (CRP) (r = 0.32, p < 0.001). Multiple linear regression analysis revealed that plasma NOV/CCN3 levels were independently associated with HOMA-IR after adjusting for age, sex, BMI, WC, BP, FG, FI, lipid profile, and CRP (ß = 0.36, p < 0.001). CONCLUSION: These results suggest that plasma NOV/CCN3 levels are elevated in childhood obesity and are associated with insulin resistance, indicating that NOV/CCN3 may play a role in the pathogenesis of metabolic disorders in obese children.


Assuntos
Índice de Massa Corporal , Resistência à Insulina , Proteína Sobre-Expressa em Nefroblastoma , Obesidade Infantil , Humanos , Proteína Sobre-Expressa em Nefroblastoma/sangue , Masculino , Feminino , Obesidade Infantil/sangue , Criança , Glicemia/análise , Circunferência da Cintura , Insulina/sangue , Biomarcadores/sangue , Estudos Transversais , Pressão Sanguínea
2.
J Immunol Res ; 2020: 3891425, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32455138

RESUMO

Nephroblastoma overexpressed protein (NOV/CCN3), the early discovered member of the CCN family, has recently been suggested to be involved in a number of inflammatory processes, including wound healing, alveolar epithelial cell inflammation, cancer metastasis, and macrophage foam cell formation. However, the role of CCN3 in rheumatoid arthritis (RA), a classic autoimmune and inflammatory disease, remains elusive. RA is a chronic systemic autoimmune disease that eventually leads to cartilage and bone destruction and joint dysfunction. In this study, we investigated the potential of serum CCN3 as a biomarker for RA. The serum levels of CCN3 were measured by ELISA. The clinical and laboratory parameters were collected from a clinical record system, and disease activity was determined by joint disease activity score 28 (DAS28). Our results showed that the serum levels of CCN3 were significantly increased in RA patients compared to healthy controls. Furthermore, the CCN3 level was positively correlated with DAS28 (CRP), DAS28 (ESR), and the level of anti-CCP Ab, an autoantibody highly specific for RA. Furthermore, CCN3 showed a positive correlation with inflammatory cytokine IL-6, while no significant correlation with TNF-α was observed. These data suggest that CCN3 plays an important role in the development of RA and might be a potential disease activity biomarker for RA.


Assuntos
Artrite/imunologia , Biomarcadores/sangue , Inflamação/metabolismo , Interleucina-6/sangue , Proteína Sobre-Expressa em Nefroblastoma/sangue , Adulto , Idoso , Anticorpos Antiproteína Citrulinada/sangue , Artrite/diagnóstico , Proteína C-Reativa/metabolismo , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
3.
Med Sci Monit ; 25: 6755-6766, 2019 Sep 08.
Artigo em Inglês | MEDLINE | ID: mdl-31494663

RESUMO

BACKGROUND Matricellular proteins of the extracellular matrix (ECM) include tenascin-C (TNC) and cellular communication network factor 3 (CCN3). This study aimed to investigate the role of TNC and CCN3 as prognostic factors for post hepatectomy liver failure (PHLF) in a rat model of partial hepatectomy and 50 patients following partial hepatectomy. MATERIAL AND METHODS Sprague-Dawley rats underwent 85% (n=53) or 90% hepatectomy (n=53) in the partial hepatectomy (PHx) model. TNC and CCN3 mRNA expression in residual liver tissue was evaluated using quantitative reverse transcription-polymerase chain reaction (qRT-PCR), and enzyme-linked immunoassay (ELISA) determined the serum levels of TNC and CCN3. In 50 patients who underwent partial hepatectomy, TNC and CCN3 serum levels were measured on postoperative day 1 and day 3. RESULTS In the rat partial hepatectomy model, mRNA and serum levels of TNC and CCN3 were significantly increased within the first 24 h, and were higher in the 90% PHx group compared with the 85% PHx group. Fifty patients who underwent partial hepatectomy, included patients with PHLF (n=12) and patients without PHLF (n=38). Multivariate analysis confirmed that serum levels on postoperative day 3 TNChigh+CCN3high was a significant predictor of PHLF, which was associated with more than twice the risk of severe morbidity when compared with the low-risk patients (80% vs. 30%) and a significantly longer hospital stay (17 days vs. 8 days). CONCLUSIONS Further studies are needed to evaluate the potential role of the matricellular proteins, TNC and CCN3 as early clinical predictors for PHLF.


Assuntos
Hepatectomia/efeitos adversos , Falência Hepática/etiologia , Proteína Sobre-Expressa em Nefroblastoma/metabolismo , Tenascina/metabolismo , Adulto , Idoso , Animais , Área Sob a Curva , Bilirrubina/sangue , Modelos Animais de Doenças , Feminino , Humanos , Tempo de Internação , Falência Hepática/sangue , Falência Hepática/genética , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Morbidade , Análise Multivariada , Proteína Sobre-Expressa em Nefroblastoma/sangue , Proteína Sobre-Expressa em Nefroblastoma/genética , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Curva ROC , Ratos Sprague-Dawley , Fatores de Risco , Análise de Sobrevida , Tenascina/sangue , Tenascina/genética
4.
Int J Low Extrem Wounds ; 18(4): 354-361, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31304816

RESUMO

In the present study, a total of 428 South Indian subjects were divided into four different groups, consisting of individuals with type 2 diabetes without any other complications (T2DM), T2DM subjects with stage 2 and 3 diabetic kidney disease (CKD), T2DM subjects with grade 2 or 3 diabetic foot ulcer (DFU) and T2DM subjects having both diabetic kidney disease and diabetic foot ulcer (CKDDFU). The study was conducted ambispectively by comparing the changes in renal function among two consecutive periods, i.e., the period prior to the development of grade 2 and 3 diabetic foot ulcer (retrospectively) and after the development of DFU (prospectively). A gradual and uniform reduction of eGFR was observed throughout the study period in the subjects affected with either CKD or DFU alone. Whereas in subjects with both CKD and DFU, there was a sharp decline in the eGFR during the six months prior to the baseline, i.e., the period in which the development of ulcer and its progression to grade 2 or 3 happened. Remarkable elevations in the levels of TGF-ß1 and CCN2 (CTGF), as well as a significant reduction in the level of CCN3 (NOV), were observed in the serum of CKDDFU group subjects, compared to the other groups. Increased production of TGF-ß1 in response to the inflammatory stimulus from multiple sites in CKDDFU subjects caused a subsequent down-regulation of CCN3, followed by the activation of a large quantity of CCN2.


Assuntos
Fator de Crescimento do Tecido Conjuntivo/sangue , Diabetes Mellitus Tipo 2/complicações , Pé Diabético , Nefropatias Diabéticas , Proteína Sobre-Expressa em Nefroblastoma/sangue , Fator de Crescimento Transformador beta1/sangue , Adulto , Pé Diabético/sangue , Pé Diabético/etiologia , Pé Diabético/fisiopatologia , Nefropatias Diabéticas/sangue , Nefropatias Diabéticas/etiologia , Nefropatias Diabéticas/fisiopatologia , Progressão da Doença , Regulação para Baixo , Feminino , Humanos , Índia , Inflamação/metabolismo , Testes de Função Renal/métodos , Masculino , Índice de Gravidade de Doença , Regulação para Cima
5.
Clin Chim Acta ; 494: 52-57, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30876855

RESUMO

BACKGROUD: CCN3 is a novel adipokine and has emerged as a potential metabolic regulator. However, information regarding the role of CCN3 in type 2 diabetes mellitus (T2DM) remains unclear. This study measured for the first time serum CCN3 levels in T2DM and explored the correlations between its serum levels and various metabolic parameters in humans. METHODS: A total of 219 newly diagnosed T2DM (nT2DM) patients and 205 healthy control subjects, matched for age and sex ratio, were enrolled. Circulating CCN3 and TNF-α, IL-6 and MCP-1 were measured by ELISA. The anthropometric assessment and biochemical evaluation were done in all subjects. OGTT were performed in 34 healthy individuals to investigate the association of CCN3 with glucose. RESULTS: Serum CCN3 levels were significantly higher in nT2DM patients compared to those of the healthy controls (6.71[4.88, 8.56] vs. 4.51[3.55, 5.99] ng/ml, P < 0.01). Serum CCN3 positively correlated with BMI, WC, FAT%, TG, FPG, 2 h-PG, HbA1c, FIns, HOMA-IR, hs-CRP and TNF-α, IL-6 and MCP-1, but negatively with HOMA-ß in all individuals (P < 0.05). Multiple linear regression analysis indicated that BMI, HOMA-IR, TNF-α and MCP-1 were independently associated with CCN3. Multivariate logistic regression analysis demonstrated that CCN3 was correlated with nT2DM. Finally, area under ROC curve of CCN3 (gender and age adjusted) for predicting the presence of nT2DM was 0.725(95% CI: 0.676-0.773). After an oral glucose challenge, there was no obvious change in the circulating levels of CCN3 as compared to 0 min (P > 0.05). CONCLUSIONS: Elevation of CCN3 in nT2DM supports the hypothesis that CCN3 may serve as a risk factor associated with the pathogenesis of T2DM.


Assuntos
Diabetes Mellitus Tipo 2/sangue , Inflamação/sangue , Resistência à Insulina , Proteína Sobre-Expressa em Nefroblastoma/sangue , Obesidade/sangue , Adulto , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/metabolismo , Feminino , Humanos , Inflamação/complicações , Inflamação/metabolismo , Masculino , Proteína Sobre-Expressa em Nefroblastoma/metabolismo , Obesidade/complicações , Obesidade/metabolismo
6.
Horm Mol Biol Clin Investig ; 31(2)2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28862983

RESUMO

Obstructive sleep apnea (OSA) has a strong association with cardiovascular and metabolic abnormalities, although the mechanism driving this association is not well established. NOV/CCN3, a multifunctional extracellular matrix protein, may play a mechanistic and/or prognostic role in these associations. We hypothesized that patients with OSA, which primarily affects obese individuals, will have increased levels of NOV, and that NOV can serve as a biomarker in patients to predict OSA as well as metabolic and cardiac risk. Ten morbidly obese and 10 healthy lean subjects underwent overnight polysomnography (PSG) and clinical evaluation. Blood samples were analyzed for NOV levels, adiponectin and IL-6. OSA was found in nine obese subjects and three lean subjects. NOV levels were significantly higher in the OSA vs. no OSA group (2.1 ± 0.9 vs. 1.3 ± 0.8, p < 0.03). NOV levels were significantly higher in the obese vs. lean group (2.2 ± 0.3 vs. 1.4 ± 0.2-fold change, p < 0.03). Among lean subjects, NOV levels were significantly higher in the OSA vs. no OSA group (2.1 ± 0.9 vs. 1.0 ± 0.4, p < 0.05). NOV and AHI were positively correlated (ρ = 0.49, p = 0.033). IL-6 and adiponectin differences in obese vs. lean and OSA vs. no OSA were consistent with an inflammatory phenotype in obese subjects and OSA subjects. NOV is a novel biomarker of the presence and severity of OSA and a potential marker of future cardiovascular and metabolic disease in OSA patients.


Assuntos
Suscetibilidade a Doenças , Proteína Sobre-Expressa em Nefroblastoma/metabolismo , Apneia Obstrutiva do Sono/metabolismo , Adipocinas/sangue , Adipocinas/metabolismo , Adulto , Biomarcadores , Comorbidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Proteína Sobre-Expressa em Nefroblastoma/sangue , Proteína Sobre-Expressa em Nefroblastoma/genética , Apneia Obstrutiva do Sono/diagnóstico , Apneia Obstrutiva do Sono/epidemiologia , Apneia Obstrutiva do Sono/etiologia
7.
PLoS One ; 10(9): e0137876, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26367310

RESUMO

The main hallmark of chronic kidney disease (CKD) is excessive inflammation leading to interstitial tissue fibrosis. It has been recently reported that NOV/CCN3 could be involved in kidney damage but its role in the progression of nephropathies is poorly known. NOV/CCN3 is a secreted multifunctional protein belonging to the CCN family involved in different physiological and pathological processes such as angiogenesis, inflammation and cancers. The purpose of our study was to determine the role of NOV/CCN3 in renal inflammation and fibrosis related to primitive tubulointerstitial injury. After unilateral ureteral obstruction (UUO), renal histology and real-time PCR were performed in NOV/CCN3-/- and wild type mice. NOV/CCN3 mRNA expression was increased in the obstructed kidneys in the early stages of the obstructive nephropathy. Interestingly, plasmatic levels of NOV/CCN3 were strongly induced after 7 days of UUO and the injection of recombinant NOV/CCN3 protein in healthy mice significantly increased CCL2 mRNA levels. Furthermore, after 7 days of UUO NOV/CCN3-/- mice displayed reduced proinflammatory cytokines and adhesion markers expression leading to restricted accumulation of interstitial monocytes, in comparison with their wild type littermates. Consequently, in NOV/CCN3-/- mice interstitial renal fibrosis was blunted after 15 days of UUO. In agreement with our experimental data, NOV/CCN3 expression was highly increased in biopsies of patients with tubulointerstitial nephritis. Thus, the inhibition of NOV/CCN3 may represent a novel target for the progression of renal diseases.


Assuntos
Nefropatias/patologia , Rim/patologia , Nefrite Intersticial/patologia , Proteína Sobre-Expressa em Nefroblastoma/metabolismo , Animais , Biomarcadores/metabolismo , Fibrose/metabolismo , Fibrose/patologia , Regulação da Expressão Gênica , Humanos , Nefropatias/genética , Nefropatias/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Camundongos Mutantes , Nefrite Intersticial/genética , Nefrite Intersticial/metabolismo , Proteína Sobre-Expressa em Nefroblastoma/sangue , Proteína Sobre-Expressa em Nefroblastoma/genética , Insuficiência Renal Crônica/patologia , Obstrução Ureteral/metabolismo
8.
PLoS One ; 8(6): e66788, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23785511

RESUMO

OBJECTIVE: Evidence points to a founder of the multifunctional CCN family, NOV/CCN3, as a circulating molecule involved in cardiac development, vascular homeostasis and inflammation. No data are available on the relationship between plasma NOV/CCN3 levels and cardiovascular risk factors in humans. This study investigated the possible relationship between plasma NOV levels and cardiovascular risk factors in humans. METHODS: NOV levels were measured in the plasma from 594 adults with a hyperlipidemia history and/or with lipid-lowering therapy and/or a body mass index (BMI) >30 kg/m(2). Correlations were measured between NOV plasma levels and various parameters, including BMI, fat mass, and plasma triglycerides, cholesterol, glucose, and C-reactive protein. NOV expression was also evaluated in adipose tissue from obese patients and rodents and in primary cultures of adipocytes and macrophages. RESULTS: After full multivariate adjustment, we detected a strong positive correlation between plasma NOV and BMI (r = 0.36 p<0.0001) and fat mass (r = 0.33 p<0.0005). According to quintiles, this relationship appeared to be linear. NOV levels were also positively correlated with C-reactive protein but not with total cholesterol, LDL-C or blood glucose. In patients with drastic weight loss induced by Roux-en-Y bariatric surgery, circulating NOV levels decreased by 28% (p<0.02) and 48% (p<0.0001) after 3 and 6 months, respectively, following surgery. In adipose tissue from obese patients, and in human primary cultures NOV protein was detected in adipocytes and macrophages. In mice fed a high fat diet NOV plasma levels and its expression in adipose tissue were also significantly increased compared to controls fed a standard diet. CONCLUSION: Our results strongly suggest that in obese humans and mice plasma NOV levels positively correlated with NOV expression in adipose tissue, and support a possible contribution of NOV to obesity-related inflammation.


Assuntos
Doenças Metabólicas/sangue , Doenças Metabólicas/complicações , Proteína Sobre-Expressa em Nefroblastoma/sangue , Obesidade/sangue , Obesidade/complicações , Tecido Adiposo/metabolismo , Adulto , Idoso , Animais , Glicemia , Composição Corporal , Índice de Massa Corporal , Proteína C-Reativa/metabolismo , Dieta Hiperlipídica , Feminino , Humanos , Metabolismo dos Lipídeos , Masculino , Doenças Metabólicas/metabolismo , Camundongos , Pessoa de Meia-Idade , Proteína Sobre-Expressa em Nefroblastoma/metabolismo , Obesidade/metabolismo , Fatores de Risco
9.
Am J Pathol ; 180(5): 1979-90, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22538190

RESUMO

In contrast to factors that promote mesangial cell proliferation, little is known about their endogenous inhibitors. During experimental mesangioproliferative nephritis, expression of the glomerular CCN3 (nephroblastoma overexpressed gene [NOV]) gene is reduced before the proliferative phase and increased in glomeruli and serum when mesangial cell proliferation subsides. To further elucidate its role in mesangioproliferative glomerulonephritis, CCN3 systemically was overexpressed by muscle electroporation in healthy or nephritic rats. This increased CCN3 serum concentrations more than threefold for up to 56 days. At day 5 after disease induction, CCN3-transfected rats showed an increase in glomerular endothelial area and in mRNA levels of the pro-angiogenic factors vascular endothelial growth factor and PDGF-C. At day 7, CCN3 overexpression decreased mesangial cell proliferation, including expression of α-smooth muscle actin and matrix accumulation of fibronectin and type IV collagen. In progressive nephritis (day 56), overexpression of CCN3 resulted in decreased albuminuria, glomerulosclerosis, and reduced cortical collagen type I accumulation. In healthy rat kidneys, overexpression of CCN3 induced no morphologic changes but regulated glomerular gene transcripts (reduced transcription of PDGF-B, PDGF-D, PDGF-receptor-ß, and fibronectin, and increased PDGF-receptor-α and PDGF-C mRNA). These data identify a dual role for CCN3 in experimental glomerulonephritis with pro-angiogenic and antimesangioproliferative effects. Manipulation of CCN3 may represent a novel approach to help repair glomerular endothelial damage and mesangioproliferative changes.


Assuntos
Glomerulonefrite Membranoproliferativa/metabolismo , Neovascularização Fisiológica/fisiologia , Proteína Sobre-Expressa em Nefroblastoma/fisiologia , Actinas/metabolismo , Doença Aguda , Indutores da Angiogênese/metabolismo , Animais , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , Colágeno Tipo IV/metabolismo , Progressão da Doença , Eletroquimioterapia/métodos , Células Endoteliais/efeitos dos fármacos , Fibronectinas/metabolismo , Terapia Genética/métodos , Mesângio Glomerular/patologia , Glomerulonefrite Membranoproliferativa/patologia , Glomerulonefrite Membranoproliferativa/fisiopatologia , Glomerulonefrite Membranoproliferativa/terapia , Humanos , Glomérulos Renais/irrigação sanguínea , Glomérulos Renais/efeitos dos fármacos , Masculino , Células Mesangiais/patologia , Músculo Esquelético/metabolismo , Proteína Sobre-Expressa em Nefroblastoma/sangue , Proteína Sobre-Expressa em Nefroblastoma/genética , Proteína Sobre-Expressa em Nefroblastoma/farmacologia , RNA Mensageiro/genética , Ratos , Ratos Wistar , Reação em Cadeia da Polimerase em Tempo Real/métodos , Proteínas Recombinantes/farmacologia
10.
Blood Rev ; 23(2): 79-85, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18752874

RESUMO

CCN3, a founding member of the CCN family of growth regulators, was linked with hematology in 2003(1) when it was detected in human serum. CCN3 is expressed and secreted by hematopoietic progenitor cells in normal bone marrow. CCN3 acts through the core stem cell signalling pathways including Notch and Bone Morphogenic Protein, connecting CCN3 with the modulation of self-renewal and maturation of a number of cell lineages including hematopoietic, osteogenic and chondrogenic. CCN3 expression is disrupted in Chronic Myeloid Leukemia as a consequence of the BCR-ABL oncogene and allows the leukemic clone to evade growth regulation. In contrast, naïve cord blood progenitors undergo enhanced clonal expansion in response to CCN3. Altered CCN3 expression is associated with numerous solid tumors including glioblastoma, melanoma, adrenocortical tumours, prostate cancer and bone malignancies including osteosarcoma. Mature CCN3 protein has five distinct modules and truncated protein variants with altered function are found in many cancers. Regulation by CCN3 is therefore cell type and isoform specific. CCN3 has emerged as a key player in stem cell regulation, hematopoiesis and a crucial component within the bone marrow microenvironment.


Assuntos
Células-Tronco Hematopoéticas/fisiologia , Proteína Sobre-Expressa em Nefroblastoma/fisiologia , Sequência de Aminoácidos , Humanos , Dados de Sequência Molecular , Proteína Sobre-Expressa em Nefroblastoma/sangue , Proteína Sobre-Expressa em Nefroblastoma/química
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