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Machado AS, Oliveira JR, de F Lelis D, D Guimarães VH, de Paula AMB, Guimarães ALS, Brandi IV, de Carvalho BMA, da Costa DV, Vieira CR, Pereira UA, de Oliveira Costa T, Andrade JMO, Dos Santos RAS, Santos SHS. Oral angiotensin-(1-7) peptide modulates intestinal microbiota improving metabolic profile in obese mice. Protein Pept Lett 2021; 28:1127-1137. [PMID: 34397321 DOI: 10.2174/0929866528666210816115645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/25/2021] [Accepted: 06/15/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Obesity is a serious health problem which dysregulate Renin-Angiotensin System and intestinal microbiota. OBJECTIVE The present study aimed to evaluate the Angiotensin-(1-7) [ANG-(1-7)] oral formulation effects on obese mice intestinal microbiota. METHODS Mice were divided into four groups: obese and non-obese treated with ANG-(1-7) and obese and non-obese without ANG-(1-7) during four weeks. RESULTS We observed a significant decrease in the fasting plasma glucose, total cholesterol, triglycerides, and Low-density lipoprotein levels and increased High-density lipoprotein in animals treated with ANG-(1-7). The histological analysis showed intestinal villi height reduction in mice treated with ANG-(1-7). Additionally, increased Bacteroidetes and decreased Firmicutes (increased Bacteroidetes/Firmicutes ratio) and Enterobacter cloacae populations were observed in the High-Fat Diet + ANG-(1-7) group. Receptor toll-like 4 (TLR4) intestinal mRNA expression was reduced in the HFD+ ANG-(1-7) group. Finally, the intestinal expression of the neutral amino acid transporter (B0AT1) was increased in animals treated with ANG-(1-7), indicating a possible mechanism associated with tryptophan uptake. CONCLUSION The results of the present study suggest for the first time an interaction between oral ANG-(1-7) and intestinal microbiota modulation.
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Affiliation(s)
- Amanda S Machado
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
| | - Janaína R Oliveira
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
| | - Deborah de F Lelis
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
| | - Victor Hugo D Guimarães
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
| | - Alfredo M B de Paula
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
| | - André L S Guimarães
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
| | - Igor V Brandi
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Bruna Mara A de Carvalho
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Diego Vicente da Costa
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Cláudia Regina Vieira
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Ulisses Alves Pereira
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Theles de Oliveira Costa
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - João M O Andrade
- Institute of Agricultural Sciences. Food Engineering College, Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Robson A S Dos Santos
- Institute of Biological Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Sérgio H S Santos
- Laboratory of Health Science, Postgraduate Program in Health Sciences, Montes Claros, Minas Gerais, Brazil
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Machado AS, Oliveira JR, Lelis DDF, de Paula AMB, Guimarães ALS, Andrade JMO, Brandi IV, Santos SHS. Oral Probiotic Bifidobacterium Longum Supplementation Improves Metabolic Parameters and Alters the Expression of the Renin-Angiotensin System in Obese Mice Liver. Biol Res Nurs 2020; 23:100-108. [PMID: 32700545 DOI: 10.1177/1099800420942942] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Obesity and non-alcoholic fatty liver disease (NAFLD) have been increasing at an alarming rate worldwide. Bifidobacterium longum (BL), a common member of the human gut microbiota, has important health benefits through several mechanisms. OBJECTIVES We evaluated the BL supplementation effects on body metabolism and renin-angiotensin components hepatic expression in mice fed a high-fat diet. METHODS Thirty-two male mice were divided into four groups: standard diet + placebo (ST), standard diet + Bifidobacterium longum (ST + BL), high-fat diet + placebo (HFD) and high-fat diet + Bifidobacterium longum (HFD + BL). Following the obesity induction period, the ST + BL and HFD + BL groups were supplemented with Bifidobacterium longum for 4 weeks. Then, body, biochemical, histological and molecular parameters were evaluated. RESULTS HFD + BL mice had a significant decrease in adipose tissue mass and blood glucose levels, as well as a significant reduction in blood glucose during an intraperitoneal glucose tolerance test. The treatment also resulted in reduced levels of total cholesterol and hepatic fat accumulation. Moreover, we observed an increase in angiotensin converting enzyme 2 (ACE2) and Mas receptor (MASR) expression levels in BL-treated obese mice. CONCLUSIONS These data demonstrate that BL may have the potential to prevent obesity and NAFLD by modulating the mRNA expression of renin-angiotensin system components.
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Affiliation(s)
- Amanda S Machado
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Janaína R Oliveira
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Deborah de F Lelis
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Alfredo M B de Paula
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - André L S Guimarães
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - João M O Andrade
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Igor V Brandi
- Institute of Agricultural Sciences, Food Engineering, 28114Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Sérgio H S Santos
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil.,Institute of Agricultural Sciences, Food Engineering, 28114Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
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Poswar FO, Fraga CAC, Farias LC, Feltenberger JD, Cruz VPD, Santos SHS, Silveira CM, de Paula AMB, Guimarães ALS. Immunohistochemical analysis of TIMP-3 and MMP-9 in actinic keratosis, squamous cell carcinoma of the skin, and basal cell carcinoma. Pathol Res Pract 2013; 209:705-9. [PMID: 24011615 DOI: 10.1016/j.prp.2013.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 07/18/2013] [Accepted: 08/05/2013] [Indexed: 12/27/2022]
Abstract
The expression of metalloproteinases and their inhibitors has been related to different invasive and metastatic potentials in cancer. This study aims to investigate the immunohistochemical expression of TIMP-3 and MMP-9 in samples of basal cell carcinoma (BCC), squamous cell carcinoma of the skin (SCC), and actinic keratosis (AK). Immunohistochemistry was performed to evaluate the expression of TIMP-3 and MMP-9 in samples of BCC (n=22), SCC (n=10), and AK (n=15). Ten fields of both tumor parenchyma and tumor stroma were photographed and counted in image software. The ratio of positive cells to total cells was used to quantify the staining. A higher expression of MMP-9 was found in tumor stroma of SCC compared to BCC and AK. No significant differences in TIMP-3 expression were observed among the groups. Considering the well-described differences between these neoplasms, these results provide additional evidence of the role of MMP-9 in tumor invasiveness of keratinocyte-derived tumors.
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Affiliation(s)
- Fabiano O Poswar
- Department of Dentistry, Universidade Estadual de Montes Claros, Minas Gerais, Brazil; Department of Medicine, Universidade Estadual de Montes Claros, Minas Gerais, Brazil
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Galvão CF, Gomes CC, Diniz MG, Vargas PA, de Paula AMB, Mosqueda-Taylor A, Loyola AM, Gomez RS. Loss of heterozygosity (LOH) in tumour suppressor genes in benign and malignant mixed odontogenic tumours. J Oral Pathol Med 2011; 41:389-93. [PMID: 22082131 DOI: 10.1111/j.1600-0714.2011.01115.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Although molecular alterations are reported in different types of odontogenic tumours, their pathogenesis remains to be established. Loss of heterozygosity (LOH) studies allow the identification of minimal regions of deletions of known or putative tumour suppressor genes, the losses of which may promote neoplastic growth. The purpose of this study was to investigate LOH in a set of odontogenic mixed tumours. Tumour suppressor gene loci on 3p, 9p, 11p, 11q and 17p chromosomes were analysed in five samples of ameloblastic fibroma (AF), three samples of ameloblastic fibro-odontoma (AFO) and three samples of ameloblastic fibrosarcoma (AFS). The most frequently lost genetic loci were p53 (17p13, 62%) and CHRNB1 (17p13, 55%). LOH at the chromosome regions 3p24.3, 9p22 and 9p22-p21 was identified only in AFS. No sample showed LOH at the chromosomal loci 3p21.2 and 11q13.4. For the region 9p22-p13, LOH occurred in one sample of AFO. The fractional allelic loss (FAL) was calculated for each sample. The mean FAL of the benign lesions (i.e. AF and AFO) was 22%, whereas the mean FAL of the malignant lesions (i.e. AFS) was 74.6%. In conclusion, our results show a higher FAL in AFS compared to its benign counterparts and reveal a different pattern of LOH of tumour suppressor genes in AFS, which may regulate changes in tumour behaviour.
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Affiliation(s)
- Clarice F Galvão
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Brazil
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