Monohexosylceramides from Rhizopus Species Isolated from Brazilian Caatinga: Chemical Characterization and Evaluation of Their Anti-Biofilm and Antibacterial Activities

Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and morphological transition. In this study, we report the isolation, purification and chemical characterization of CMHs from and . Using positive i...

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Published in:Molecules (Basel, Switzerland) Vol. 23; no. 6; p. 1331
Main Authors: Vieira, Edson Rodrigues, Xisto, Mariana Ingrid Dutra da Silva, Pele, Milagre Américo, Alviano, Daniela Sales, Alviano, Celuta Sales, Barreto-Bergter, Eliana, de Campos-Takaki, Galba Maria
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Abstract Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and morphological transition. In this study, we report the isolation, purification and chemical characterization of CMHs from and . Using positive ion mode ESI-MS, two major ion species were observed at / 750 and / 766, respectively. Both ion species consisted of a glucose/galactose residue attached to a ceramide moiety containing 9-methyl-4,8-sphingadienine with an amidic linkage to a hydroxylated C16:0 fatty acid. The antimicrobial activity of CMH was evaluated against Gram positive and Gram negative bacteria using the agar diffusion assay. CMH from both species inhibited the growth of , ( ) and ( ) with a MIC of 6.25, 6.25 and 3.13 mg/mL, respectively. The bactericidal effect was detected only for and , with MBC values of 25 and 6.25 mg/mL, respectively. Furthermore, the action of CMH on the biofilm produced by methicillin-resistant (MRSA) was analyzed using 12.5 and 25 mg/mL of CMH from . Total biofilm biomass, biofilm matrix and viability of the cells that form the biofilm structure were evaluated. CMH from was able to inhibit the MRSA biofilm formation in all parameters tested.
AbstractList Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and morphological transition. In this study, we report the isolation, purification and chemical characterization of CMHs from and . Using positive ion mode ESI-MS, two major ion species were observed at / 750 and / 766, respectively. Both ion species consisted of a glucose/galactose residue attached to a ceramide moiety containing 9-methyl-4,8-sphingadienine with an amidic linkage to a hydroxylated C16:0 fatty acid. The antimicrobial activity of CMH was evaluated against Gram positive and Gram negative bacteria using the agar diffusion assay. CMH from both species inhibited the growth of , ( ) and ( ) with a MIC of 6.25, 6.25 and 3.13 mg/mL, respectively. The bactericidal effect was detected only for and , with MBC values of 25 and 6.25 mg/mL, respectively. Furthermore, the action of CMH on the biofilm produced by methicillin-resistant (MRSA) was analyzed using 12.5 and 25 mg/mL of CMH from . Total biofilm biomass, biofilm matrix and viability of the cells that form the biofilm structure were evaluated. CMH from was able to inhibit the MRSA biofilm formation in all parameters tested.
Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and morphological transition. In this study, we report the isolation, purification and chemical characterization of CMHs from Rhizopus stolonifer and R. microspores. Using positive ion mode ESI-MS, two major ion species were observed at m/z 750 and m/z 766, respectively. Both ion species consisted of a glucose/galactose residue attached to a ceramide moiety containing 9-methyl-4,8-sphingadienine with an amidic linkage to a hydroxylated C16:0 fatty acid. The antimicrobial activity of CMH was evaluated against Gram positive and Gram negative bacteria using the agar diffusion assay. CMH from both Rhizopus species inhibited the growth of Bacillus terrae, Micrococcus luteus (M. luteus) and Pseudomonas stutzeri (P. stutzeri) with a MIC50 of 6.25, 6.25 and 3.13 mg/mL, respectively. The bactericidal effect was detected only for M. luteus and P. stutzeri, with MBC values of 25 and 6.25 mg/mL, respectively. Furthermore, the action of CMH on the biofilm produced by methicillin-resistant Staphylococcus aureus (MRSA) was analyzed using 12.5 and 25 mg/mL of CMH from R. microsporus. Total biofilm biomass, biofilm matrix and viability of the cells that form the biofilm structure were evaluated. CMH from R. microsporus was able to inhibit the MRSA biofilm formation in all parameters tested.
Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and morphological transition. In this study, we report the isolation, purification and chemical characterization of CMHs from Rhizopus stolonifer and R. microspores . Using positive ion mode ESI-MS, two major ion species were observed at m / z 750 and m / z 766, respectively. Both ion species consisted of a glucose/galactose residue attached to a ceramide moiety containing 9-methyl-4,8-sphingadienine with an amidic linkage to a hydroxylated C16:0 fatty acid. The antimicrobial activity of CMH was evaluated against Gram positive and Gram negative bacteria using the agar diffusion assay. CMH from both Rhizopus species inhibited the growth of Bacillus terrae , Micrococcus luteus ( M. luteus ) and Pseudomonas stutzeri ( P. stutzeri ) with a MIC 50 of 6.25, 6.25 and 3.13 mg/mL, respectively. The bactericidal effect was detected only for M. luteus and P. stutzeri , with MBC values of 25 and 6.25 mg/mL, respectively. Furthermore, the action of CMH on the biofilm produced by methicillin-resistant Staphylococcus aureus (MRSA) was analyzed using 12.5 and 25 mg/mL of CMH from R. microsporus . Total biofilm biomass, biofilm matrix and viability of the cells that form the biofilm structure were evaluated. CMH from R. microsporus was able to inhibit the MRSA biofilm formation in all parameters tested.
Author Barreto-Bergter, Eliana
Alviano, Daniela Sales
de Campos-Takaki, Galba Maria
Vieira, Edson Rodrigues
Xisto, Mariana Ingrid Dutra da Silva
Pele, Milagre Américo
Alviano, Celuta Sales
AuthorAffiliation 2 Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil; marylanax@gmail.com
3 Laboratório de Estrutura de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil; danialviano@micro.ufrj.br (D.S.A.); alviano@micro.ufrj.br (C.S.A.)
1 Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil; edsonipubi@gmail.com (E.R.V.); phelema1@gmail.com (M.A.P.); galba_takaki@yahoo.com.br (G.M.d.C.-T.)
AuthorAffiliation_xml – name: 2 Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil; marylanax@gmail.com
– name: 3 Laboratório de Estrutura de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil; danialviano@micro.ufrj.br (D.S.A.); alviano@micro.ufrj.br (C.S.A.)
– name: 1 Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil; edsonipubi@gmail.com (E.R.V.); phelema1@gmail.com (M.A.P.); galba_takaki@yahoo.com.br (G.M.d.C.-T.)
Author_xml – sequence: 1
  givenname: Edson Rodrigues
  surname: Vieira
  fullname: Vieira, Edson Rodrigues
  email: edsonipubi@gmail.com
  organization: Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil. edsonipubi@gmail.com
– sequence: 2
  givenname: Mariana Ingrid Dutra da Silva
  surname: Xisto
  fullname: Xisto, Mariana Ingrid Dutra da Silva
  email: marylanax@gmail.com
  organization: Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil. marylanax@gmail.com
– sequence: 3
  givenname: Milagre Américo
  surname: Pele
  fullname: Pele, Milagre Américo
  email: phelema1@gmail.com
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– sequence: 4
  givenname: Daniela Sales
  surname: Alviano
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  email: danialviano@micro.ufrj.br
  organization: Laboratório de Estrutura de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil. danialviano@micro.ufrj.br
– sequence: 5
  givenname: Celuta Sales
  surname: Alviano
  fullname: Alviano, Celuta Sales
  email: alviano@micro.ufrj.br
  organization: Laboratório de Estrutura de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil. alviano@micro.ufrj.br
– sequence: 6
  givenname: Eliana
  surname: Barreto-Bergter
  fullname: Barreto-Bergter, Eliana
  email: eliana.bergter@micro.ufrj.br
  organization: Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil. eliana.bergter@micro.ufrj.br
– sequence: 7
  givenname: Galba Maria
  surname: de Campos-Takaki
  fullname: de Campos-Takaki, Galba Maria
  email: galba_takaki@yahoo.com.br
  organization: Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil. galba_takaki@yahoo.com.br
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Keywords monohexosylceramides
antibacterial activities
Rhizopus
biofilm
Language English
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Snippet Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and...
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StartPage 1331
SubjectTerms antibacterial activities
Antimicrobial activity
biofilm
Biofilms
Ceramide
Drug resistance
Galactose
Glycosphingolipids
Gram-negative bacteria
Methicillin
Microspores
monohexosylceramides
Organic chemistry
Positive ions
Purification
Rhizopus
Staphylococcus aureus
Staphylococcus infections
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Title Monohexosylceramides from Rhizopus Species Isolated from Brazilian Caatinga: Chemical Characterization and Evaluation of Their Anti-Biofilm and Antibacterial Activities
URI https://www.ncbi.nlm.nih.gov/pubmed/29865153
https://www.proquest.com/docview/2108562955
https://search.proquest.com/docview/2050485075
https://pubmed.ncbi.nlm.nih.gov/PMC6100016
https://doaj.org/article/c055dec03eeb4e2e8c3939b440e3a81f
Volume 23
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