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de Oliveira FP, da C Rodrigues ACB, de Lima EJSP, Silva VR, de S Santos L, da Anunciação TA, Nogueira ML, Soares MBP, Dias RB, Gurgel Rocha CA, Duvoisin Junior S, Albuquerque PM, Lima ES, Gonçalves JFC, Bataglion GA, Costa EV, da Silva FMA, Koolen HHF, Bezerra DP. Essential Oil from Bark of Aniba parviflora (Meisn.) Mez (Lauraceae) Reduces HepG2 Cell Proliferation and Inhibits Tumor Development in a Xenograft Model. Chem Biodivers 2021; 18:e2000938. [PMID: 33508178 DOI: 10.1002/cbdv.202000938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/28/2021] [Indexed: 11/11/2022]
Abstract
Aniba parviflora (Meisn.) Mez (Lauraceae) is an aromatic plant of the Amazon rainforest, which has a tremendous commercial value in the perfumery industry; it is popularly used as flavoring sachets and aromatic baths. In Brazilian folk medicine, A. parviflora is used to treat victims of snakebites. Herein, we analyzed the chemical composition of A. parviflora bark essential oil (EO) and its effect on the growth of human hepatocellular carcinoma HepG2 cells in vitro and in vivo. EO was obtained by hydrodistillation and characterized by GC-MS and GC-FID. The main constituents of EO were linalool (16.3±3.15), α-humulene (14.5±2.41 %), δ-cadinene (10.2±1.09 %), α-copaene (9.51±1.12 %) and germacrene B (7.58±2.15 %). Initially, EO's cytotoxic effect was evaluated against five cancer cell lines (HepG2, MCF-7, HCT116, HL-60 and B16-F10) and one non-cancerous one (MRC-5), using the Alamar blue method after 72 h of treatment. The calculated IC50 values were 9.05, 22.04, >50, 15.36, 17.57, and 30.46 μg/mL, respectively. The best selectivity was for HepG2 cells with a selective index of 3.4. DNA Fragmentation and cell cycle distribution were quantified in HepG2 cells by flow cytometry after a treatment period of 24 and 48 h. The effect of EO on tumor development in vivo was evaluated in a xenograft model using C.B-17 SCID mice engrafted with HepG2 cells. In vivo tumor growth inhibition of HepG2 xenograft at the doses of 40 and 80 mg/kg were 12.1 and 62.4 %, respectively.
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Affiliation(s)
- Felipe P de Oliveira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | | | - Emilly J S P de Lima
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), 690065-130, Manaus, Amazonas, Brazil or
| | - Valdenizia R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Luciano de S Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Talita A da Anunciação
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Mateus L Nogueira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or.,School of Medicine and School of Dentistry, Federal University of Bahia, 40301-155, Salvador, Bahia, Brazil
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or.,School of Medicine and School of Dentistry, Federal University of Bahia, 40301-155, Salvador, Bahia, Brazil
| | - Sérgio Duvoisin Junior
- Laboratory of Applied Chemistry and Technology, Amazonas State University (UEA), 69050-020, Manaus, Amazonas, Brazil
| | - Patrícia M Albuquerque
- Laboratory of Applied Chemistry and Technology, Amazonas State University (UEA), 69050-020, Manaus, Amazonas, Brazil
| | - Emerson S Lima
- Faculty of Pharmacy, Federal University of Amazonas (UFAM), 69077-000, Manaus, Amazonas, Brazil
| | - José F C Gonçalves
- Laboratory of Plant Physiology and Biochemistry, National Institute for Amazonian Research (INPA), 69011-970, Manaus, Amazonas, Brazil
| | - Giovana A Bataglion
- Department of Chemistry, Federal University of Amazonas (UFAM), 69080-900, Manaus, Amazonas, Brazil
| | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas (UFAM), 69080-900, Manaus, Amazonas, Brazil
| | - Felipe M A da Silva
- Analytical Center, Multidisciplinary Support Center (CAM), Federal University of Amazonas (UFAM), 69080-900, Manaus, Amazonas, Brazil
| | - Hector H F Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), 690065-130, Manaus, Amazonas, Brazil or
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
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Silva MET, Duvoisin S, Oliveira RL, Banhos EF, Souza AQL, Albuquerque PM. Biosurfactant production of Piper hispidum endophytic fungi. J Appl Microbiol 2019; 130:561-569. [PMID: 31340085 DOI: 10.1111/jam.14398] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 03/24/2019] [Revised: 06/29/2019] [Accepted: 07/11/2019] [Indexed: 11/30/2022]
Abstract
AIMS To evaluate the production of biosurfactants by fungi isolated from the Amazonian species Piper hispidum (Piperaceae), and to determine the physico-chemical properties of the crude biosurfactant obtained from the most promising fungi. METHODS AND RESULTS A total of 117 endophytic fungi were isolated, and 50 were used to verify the production of biosurfactants. Of these, eight presented positive results in the drop collapse test, and emulsification index ranging from 20 to 78%. The most promising fungi, Ph III 23L and Ph II 22S (identified as Aspergillus niger and Glomerella cingulata, respectively) were recultivated for extraction and analysis of the biosurfactant's physico-chemical characteristics. The cultivation broth that presented the greatest decrease in surface tension (36%) was that of the A. niger, which reduced it from 68·0 to 44·0 mN m-1 . The lowest critical micellar concentration value was found for the same endophyte (14·93 mg ml-1 ). CONCLUSIONS Endophytes of P. hispidum proved to be interesting producers of biosurfactants and presented promising physico-chemical characteristics for applications in diverse industrial sectors. SIGNIFICANCE AND IMPACT OF THE STUDY Piper hispidum endophytic fungi can be used as a new source of biosurfactants, as these molecules present a significant market due to their wide industrial applications.
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Affiliation(s)
- M E T Silva
- Graduate Program in Biodiversity and Biotechnology - Bionorte, University of Amazonas State, Manaus, Amazonas, Brazil
| | - S Duvoisin
- Laboratory of Chemistry Applied and Technology, School of Technology, University of Amazonas State, Manaus, Amazonas, Brazil
| | - R L Oliveira
- Laboratory of Chemistry Applied and Technology, School of Technology, University of Amazonas State, Manaus, Amazonas, Brazil
| | - E F Banhos
- Education Sciences Institute, Para West Federal University, Santarém, Pará, Brazil
| | - A Q L Souza
- Graduate Program in Biodiversity and Biotechnology - Bionorte, University of Amazonas State, Manaus, Amazonas, Brazil.,Graduate Program in Biotechnology and Amazon Natural Resources, University of Amazonas State, Manaus, Amazonas, Brazil.,Faculty of Agricultural Sciences, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - P M Albuquerque
- Graduate Program in Biodiversity and Biotechnology - Bionorte, University of Amazonas State, Manaus, Amazonas, Brazil.,Laboratory of Chemistry Applied and Technology, School of Technology, University of Amazonas State, Manaus, Amazonas, Brazil.,Graduate Program in Biotechnology and Amazon Natural Resources, University of Amazonas State, Manaus, Amazonas, Brazil
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Pereira CS, da Costa DS, Pereira S, Nogueira FDM, Albuquerque PM, Teixeira J, Faro C, Pissarra J. Cardosins in postembryonic development of cardoon: towards an elucidation of the biological function of plant aspartic proteinases. Protoplasma 2008; 232:203-213. [PMID: 18767217 DOI: 10.1007/s00709-008-0288-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Following on from previous work, the temporal and spatial accumulation of the aspartic proteinases (EC 3.4.23) cardosin A and cardosin B during postembryonic seed development of cardoon (Cynara cardunculus) was studied, mRNA and protein analyses of both cardosins suggested that the proteins accumulate during seed maturation, and that cardosin A is later synthesised de novo at the time of radicle emergence. Immunocytochemistry revealed that the precursor form of cardosin A accumulates in protein bodies and cell walls. This localisation in seeds is different from that previously described for cardoon flowers, suggesting a tissue-dependent targeting of the protein. It is known that procardosins are active and may have a role in proteolysis and processing of storage proteins. However, the presence of procardosin A in seeds could be related to the proposed role of the plant-specific insert in membrane lipid conversion during water uptake and solute leakage in actively growing tissues. This is in accordance with the recently proposed bifunctional role of aspartic proteinase precursor molecules that possess a membrane-destabilising domain in addition to a protease domain. Mature cardosin B, but not its mRNA, was detected in the first hours after seed imbibition and disappeared at the time of radicle emergence. This extracellular aspartic protease has already been implicated in cell wall loosening and remodelling, and its role in seed germination could be related to loosening tissue constraints for radicle protusion. The described pattern of cardosin A and B expression suggests a finely tuned developmental regulation and prompts an analysis of their possible roles in the physiology of postembryonic development.
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de Fátima M, Albuquerque PM, Gonçalves de Mello MJ, Ximenes RA. Risk factors associated with death in children admitted to a paediatric intensive care unit. J Trop Pediatr 2001; 47:86-91. [PMID: 11336141 DOI: 10.1093/tropej/47.2.86] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The aim of this study was to identify fatal risk factors for children admitted to the paediatric intensive care unit of the Instituto Materno Infantil de Pernambuco, a referral hospital in Recife, a city in the north-east of Brazil. A survey was performed from June 1996 to January 1997. Risk was quantified by the crude and adjusted odds ratio. The 95 per cent confidence interval, likelihood ratio statistics, and the probability (p < 0.05) value were used to test for statistical significance. An association was established between death in children admitted to the paediatric intensive care unit and: (1) age below 2 years old; (2) use of mechanical ventilation and central venous catheter; (3) presence of hospital-acquired infection; (4) length of hospital stay of 2 days or less; and (5) Class 4 clinical severity, according to the Clinical Classification System (CCS). These results allow the identification of the children with a greater risk of death and may contribute to improvements in handling groups of patients with poor prognosis.
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