PXD030916

PXD030916 is an original dataset announced via ProteomeXchange.

Title	An animal-free medium enhances Lactobacillus johnsonii LJO02 supernatant selective efficacy against the methicillin (oxacillin)-resistant Staphylococcus aureus virulence through key-metabolites
Description	The spread of multidrug-resistant (MDR) bacteria, such as the skin commensal Staphylococcus aureus, is a worldwide heath challenge; therefore, new methods to counteract the over-colonization and virulence of opportunistic pathogenic biotypes are highly urgent. We characterized and compared the activity of Lacticaseibacillus rhamnosus LR06 (DSM 21981) and Lactobacillus johnsonii LJO02 (DSM 33828) cell-free supernatants (CFSs), produced in a conventional animal-based MRS medium and in an innovative vegetal TIL, versus the MDR Staphylococcus aureus (ATCC 43300). CFSs were analysed via high-resolution mass spectrometry and gas-chromatography for short chain fatty acids (SCFAs), lactic acid and protein composition, while their activity was assessed towards i) the viability and metabolic activity of the MRSA strain through optical density and alamarBlue assay, and ii) the capability to inhibit/disaggregate the pathogenic biofilm, via crystal violet staining. All the CFSs reduce viable and metabolically active S. aureus, with the TIL medium more efficient, respect to MRS, in stimulating lactic acid bacteria metabolism and reducing the virulent biofilm. CFSs from LJO02 produced in TIL are the best, thanks to specific SCFAs and proteic metabolites. In conclusion, antagonistic non-pathogenic CFSs represent a promising and strategic approach, with potential applications as bacteriotherapy, and bioremediation of hospital equipments surfaces.
HostingRepository	PRIDE
AnnounceDate	2022-06-09
AnnouncementXML	Submission_2022-06-09_02:02:28.697.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Marcello Manfredi
SpeciesList	scientific name: Lactobacillus johnsonii; NCBI TaxID: 33959; scientific name: Lacticaseibacillus rhamnosus; NCBI TaxID: 47715;
ModificationList	monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Q Exactive

Revision	Datetime	Status	ChangeLog Entry
0	2022-01-12 09:10:02	ID requested
⏵ 1	2022-06-09 02:02:29	announced

Squarzanti DF, Zanetta P, Ormelli M, Manfredi M, Barberis E, Vanella VV, Amoruso A, Pane M, Azzimonti B, virulence through key-metabolites. Sci Rep, 12(1):8666(2022) [pubmed]

submitter keyword: Staphylococcus aureus,Lacticaseibacillus rhamnosus,Lactobacillus johnsonii, cell-free supernatants, SCFAs, proteimics

Marcello Manfredi
contact affiliation	Biological Mass Spectrometry Lab,Department of Translational Medicine (DiMeT),Center for Translational Research on Autoimmune & Allergic Diseases - CAAD,University of Piemonte Orientale, Corso Trieste 15/A, 28100, Novara, Italy
contact email	marcello.manfredi@uniupo.it
lab head
Marcello Manfredi
contact affiliation	University of Eastern Piedmont
contact email	marcello.manfredi@uniupo.it
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD030916
     1. Label: PRIDE project
     2. Name: An animal-free medium enhances Lactobacillus johnsonii LJO02 supernatant selective efficacy against the methicillin (oxacillin)-resistant Staphylococcus aureus virulence through key-metabolites