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Farrell CE, Liu X, Yagan NO, Suda AC, Cerqueira DM, Bodnar AJ, Kashlan OB, Subramanya AR, Ho J, Butterworth MB. MicroRNA-19 is regulated by aldosterone in a sex-specific manner to alter kidney sodium transport. Am J Physiol Cell Physiol 2024; 326:C282-C293. [PMID: 38047299 DOI: 10.1152/ajpcell.00385.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/05/2023]
Abstract
A key regulator of blood pressure homeostasis is the steroid hormone aldosterone, which is released as the final signaling hormone of the renin-angiotensin-aldosterone-signaling (RAAS) system. Aldosterone increases sodium (Na+) reabsorption in the kidney distal nephron to regulate blood volume. Unregulated RAAS signaling can lead to hypertension and cardiovascular disease. The serum and glucocorticoid kinase (SGK1) coordinates much of the Na+ reabsorption in the cortical collecting duct (CCD) tubular epithelial cells. We previously demonstrated that aldosterone alters the expression of microRNAs (miRs) in CCD principal cells. The aldosterone-regulated miRs can modulate Na+ transport and the cellular response to aldosterone signaling. However, the sex-specific regulation of miRs by aldosterone in the kidney distal nephron has not been explored. In this study, we report that miR-19, part of the miR-17-92 cluster, is upregulated in female mouse CCD cells in response to aldosterone activation. Mir-19 binding to the 3'-untranslated region of SGK1 was confirmed using a dual-luciferase reporter assay. Increasing miR-19 expression in CCD cells decreased SGK1 message and protein expression. Removal of this cluster using a nephron-specific, inducible knockout mouse model increased SGK1 expression in female mouse CCD cells. The miR-19-induced decrease in SGK1 protein expression reduced the response to aldosterone stimulation and may account for sex-specific differences in aldosterone signaling. By examining evolution of the miR-17-92 cluster, phylogenetic sequence analysis indicated that this cluster arose at the same time that other Na+-sparing and salt regulatory proteins, specifically SGK1, first emerged, indicating a conserved role for these miRs in kidney function of salt and water homeostasis.NEW & NOTEWORTHY Expression of the microRNA-17-92 cluster is upregulated by aldosterone in mouse cortical collecting duct principal cells, exclusively in female mice. MiR-19 in this cluster targets the serum and glucocorticoid kinase (SGK1) to downregulate both mRNA and protein expression, resulting in a decrease in sodium transport across epithelial cells of the collecting duct. The miR-17-92 cluster is evolutionarily conserved and may act as a novel feedback regulator for aldosterone signaling in females.
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Affiliation(s)
- Corinne E Farrell
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Xiaoning Liu
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Nejla Ozbaki Yagan
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Amanda C Suda
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Debora M Cerqueira
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Andrew J Bodnar
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Ossama B Kashlan
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Arohan R Subramanya
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Jacqueline Ho
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Michael B Butterworth
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
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Fonseca BF, Predes D, Cerqueira DM, Reis AH, Amado NG, Cayres MCL, Kuster RM, Oliveira FL, Mendes FA, Abreu JG. Derricin and derricidin inhibit Wnt/β-catenin signaling and suppress colon cancer cell growth in vitro. PLoS One 2015; 10:e0120919. [PMID: 25775405 PMCID: PMC4361740 DOI: 10.1371/journal.pone.0120919] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 02/09/2015] [Indexed: 01/05/2023] Open
Abstract
Overactivation of the Wnt/β-catenin pathway in adult tissues has been implicated in many diseases, such as colorectal cancer. Finding chemical substances that can prevent this phenomenon is an emerging problem. Recently, several natural compounds have been described as Wnt/β-catenin inhibitors and might be promising agents for the control of carcinogenesis. Here, we describe two natural substances, derricin and derricidin, belonging to the chalcone subclass, that show potent transcriptional inhibition of the Wnt/β-catenin pathway. Both chalcones are able to affect the cell distribution of β-catenin, and inhibit Wnt-specific reporter activity in HCT116 cells and in Xenopus embryos. Derricin and derricidin also strongly inhibited canonical Wnt activity in vitro, and rescued the Wnt-induced double axis phenotype in Xenopus embryos. As a consequence of Wnt/β-catenin inhibition, derricin and derricidin treatments reduce cell viability and lead to cell cycle arrest in colorectal cancer cell lines. Taken together, our results strongly support these chalcones as novel negative modulators of the Wnt/β-catenin pathway and colon cancer cell growth in vitro.
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Affiliation(s)
- Barbara F. Fonseca
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Danilo Predes
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Debora M. Cerqueira
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Alice H. Reis
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Nathalia G. Amado
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Marina C. L. Cayres
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Ricardo M. Kuster
- Universidade Federal do Rio de Janeiro, Instituto de Pesquisas em Produtos Naturais, Rio de Janeiro, Brazil
| | - Felipe L. Oliveira
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Fabio A. Mendes
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
| | - Jose G. Abreu
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Rio de Janeiro, Brazil
- * E-mail:
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Silva CG, Raulino RJ, Cerqueira DM, Mannarino SC, Pereira MD, Panek AD, Silva JFM, Menezes FS, Eleutherio ECA. In vitro and in vivo determination of antioxidant activity and mode of action of isoquercitrin and Hyptis fasciculata. Phytomedicine 2009; 16:761-767. [PMID: 19200698 DOI: 10.1016/j.phymed.2008.12.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2008] [Revised: 11/18/2008] [Accepted: 12/22/2008] [Indexed: 05/27/2023]
Abstract
Reactive oxygen species (ROS) are thought to underline the process of ageing and the pathogenicity of various diseases, such as neurodegenerative disorders and cancer. The use of traditional medicine is widespread and plants still present a large source of natural antioxidants that might serve as leads for the development of novel drugs. In this paper, the alcoholic extract from leaves of Hyptis fasciculata, a Brazilian medicinal plant, and isoquercitrin, a flavonoid identified in this species, showed to be active as 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavengers. The extract of Hyptis fasciculata and isoquercitrin were also able to increase tolerance of the eukaryotic microorganism Saccharomyces cerevisiae to both hydrogen peroxide and menadione, a source of superoxide. Cellular protection was correlated with a decrease in oxidative stress markers, such as levels of ROS, protein carbonylation and lipid peroxidation, confirming the antioxidant potential of Hyptis fasciculata and isoquercitrin.
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Affiliation(s)
- C G Silva
- Departamento de Bioquímica, Instituto de Química, UFRJ, Rio de Janeiro, Brazil.
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Cerqueira DM, de S Moraes D, Camara GNL, Amaral FA, Oyama CNR, dos Santos MQC, Martins CRF. High HPV genetic diversity in women infected with HIV-1 in Brazil. Arch Virol 2006; 152:75-83. [PMID: 16896550 DOI: 10.1007/s00705-006-0828-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Accepted: 06/29/2006] [Indexed: 10/24/2022]
Abstract
The present study on genetic diversity of human papillomaviruses in women infected by HIV in Brazil describes the frequency, the genotypes, and five new variants of HPV. One hundred fifty cervical smears of HIV-positive women were subjected to cytological examination, and the DNA samples obtained were assayed by MY09/MY11 amplification, followed by RFLP typing. The overall HPV-DNA-positive rate was 42.7%. One hundred twenty-two samples (81.3%) had benign cellular alterations or normal cytological results, and HPV DNA frequency among them was 30.3%. Otherwise, 96.4% of samples with altered cytology were positive for HPV DNA. A high diversity of genotypes was observed. HPVs-16 and 81 were the most prevalent (14.1%) and were followed by HPVs 52, 35, 62, 33, 53, 56, 66, 70, 18, 58, 6b, 11, 31, 39, 40, 61, 71, 32, 54, 59, 67, 68, 85, and 102. Five new variants of the high-risk HPVs 18, 33, 53, 59, and 66 were detected. Possible associations between the detection of HPV genotypes and the cytological classification, HIV viral load, CD4 count, and antiretroviral treatment were also examined. We observed that a high proportion of HIV-infected women are infected with HPV and may carry oncogenic genotypes, even when cytological evaluation shows normal results.
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Affiliation(s)
- D M Cerqueira
- Pós-Graduação em Biologia Molecular, Instituto de Biologia, Universidade de Brasília, Brasília, Brazil
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Silva CG, Herdeiro RS, Mathias CJ, Panek AD, Silveira CS, Rodrigues VP, Rennó MN, Falcão DQ, Cerqueira DM, Minto ABM, Nogueira FLP, Quaresma CH, Silva JFM, Menezes FS, Eleutherio ECA. Evaluation of antioxidant activity of Brazilian plants. Pharmacol Res 2005; 52:229-33. [PMID: 15896976 DOI: 10.1016/j.phrs.2005.03.008] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2004] [Revised: 01/06/2005] [Accepted: 03/29/2005] [Indexed: 11/24/2022]
Abstract
In this work, 22 alcoholic extracts, obtained from 14 species of plants belonging to four families, used for different food and medicinal purposes in Brazil, were evaluated for their capacity to inhibit the reduction of the free radical, 1,1-diphenyl-2-picrylhydrazyl (DPPH), and to protect Saccharomyces cerevisiae cells, an eukaryotic cell model, against the lethal oxidative stress caused by tert-butylhydroperoxide (TBH). Five extracts, two from Lamiaceae family (ethanol and butanol extracts from aerial parts of Hyptis fasciculata) and three from Palmae family (Copernicia cerifera leaves and mesocarp of fruits and the endocarp/mesocarp of fruits from Orbignya speciosa) were able to increase the tolerance of S. cerevisiae to TBH and showed to be active as DPPH radical scavengers, thus indicating that these plant extracts could be considered as potential sources of antioxidants. With the exception of ethanol extract of H. fasciculata, the remainder four extracts exhibited a DPPH radical scavenging activity higher than that obtained from Ginkgo biloba, a reference plant with well documented antioxidant activity. Interestingly, the ethanol extract of G. biloba were not effective for yeast cell protection, reinforcing the antioxidant potential of these extracts.
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Affiliation(s)
- C G Silva
- Departamento de Bioquímica, Instituto de Química, UFRJ, 21949-900, Rio de Janeiro, RJ, Brazil
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Veras VS, Cerqueira DM, Martins CRF. L1 sequence of a new human papillomavirus type-58 variant associated with cervical intraepithelial neoplasia. Braz J Med Biol Res 2005; 38:1-4. [PMID: 15665981 DOI: 10.1590/s0100-879x2005000100001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study on molecular characterization of a human papillomavirus (HPV) isolated in Central Brazil describes the L1 gene sequence from a new variant of HPV-58, the isolate Bsb-02. The sample was from a smear obtained from a woman with cervical intraepithelial neoplasia grade II. The whole L1 gene from isolate Bsb-02 was sequenced automatically, showing 99.1% nucleotide identity with the gene from the HPV-58 reference. The clustering between Bsb-02 and HPV-58 reference sequence was also supported by phylogenetic analysis. Fourteen nucleotide substitutions were observed: eight were synonymous and six were associated with amino acid substitutions. A10V and V144I have not been previously described. At GenBank, the only complete L1 sequence from HPV-58 in addition to the HPV-58 reference one is that of Bsb-02. These data provide information that may be relevant to HPV diagnosis and to rational vaccine strategies. HPV variants may also be associated with host immune responses and with the risk of cervical neoplasia.
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Affiliation(s)
- V S Veras
- Departamento de Biologia Celular, Instituto de Biologia, Universidade de Brasília, Brasília, DF, Brazil
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