Deguang Song
Associate Research ScientistCards
Contact Info
Immunobiology
10 Amistad RM102
New Haven, CT 06509
United States
About
Copy Link
Titles
Associate Research Scientist
Departments & Organizations
- All Institutions
Research
Copy Link
Research at a Glance
Yale Co-Authors
Frequent collaborators of Deguang Song's published research.
Publications Timeline
A big-picture view of Deguang Song's research output by year.
Noah Wolcott Palm, PhD
Jason Crawford, PhD
Mytien Nguyen
Tyler Rice, PhD
Andrew Goodman, PhD
Anjelica Martin, BS, RLATG
12Publications
669Citations
Publications
2025
Discovery of a Widespread Polyamine–Low-Molecular-Weight Thiol Hybrid Pathway in Clostridioides difficile
Hunt R, Oh J, Jain A, Kuo T, Berardi D, Jian W, Song D, Wu Q, Goodman A, Palm N, Zimmermann M, Johnson C, Crawford J. Discovery of a Widespread Polyamine–Low-Molecular-Weight Thiol Hybrid Pathway in Clostridioides difficile. ACS Infectious Diseases 2025, 11: 2246-2264. PMID: 40671632, PMCID: PMC12403189, DOI: 10.1021/acsinfecdis.5c00286.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsLow-molecular-weight thiolsTwo-gene operonBacteroides uniformisExpression of polyaminesAssociated with diseaseColorectal cancerBiosynthesis genesCommunity-level changesClostridioides difficile infectionGut homeostasisGenetic screeningGI mucosal biopsiesRisk of colorectal cancerHybrid pathwayMicrobial metabolismHybrid metabolitesGastrointestinal (GI) tractClostridioides difficileDiverse collectionHost immunityMucosal biopsiesSevere inflammationGenesCationic metabolitesMucolytic agentTryptamine Metabolism and Functionalization in Gut Commensal Bacteria Expand Human Tryptamine Signaling Responses
Park H, Song D, Nguyen M, Palm N, Crawford J. Tryptamine Metabolism and Functionalization in Gut Commensal Bacteria Expand Human Tryptamine Signaling Responses. ACS Chemical Biology 2025, 20: 1775-1782. PMID: 40577169, PMCID: PMC12372651, DOI: 10.1021/acschembio.5c00313.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsG protein-coupled receptorsDownstream functional consequencesSmall moleculesHuman G protein-coupled receptorsRNA sequencing analysisFunctional small moleculesMelatonin receptor type 1AGut commensalsGut microbesSingle-cell RNA sequencing analysisSequence analysisUrea coreTryptamine moietyMethyl carbamateInhibitory concentrationGutGut tissueHalf-maximal inhibitory concentrationUncharacterized metabolitesBacterial cultureMelatonin receptorsSignal responseMoleculesHuman physiologyScreening analysisActivity of GPCR-targeted drugs influenced by human gut microbiota metabolism
Wu Q, Song D, Zhao Y, Verdegaal A, Turocy T, Duncan-Lowey B, Goodman A, Palm N, Crawford J. Activity of GPCR-targeted drugs influenced by human gut microbiota metabolism. Nature Chemistry 2025, 17: 808-821. PMID: 40181149, PMCID: PMC12412589, DOI: 10.1038/s41557-025-01789-w.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsGut commensal bacteriaCommensal bacteriaGut microbial communityGut microbiota metabolismDrug metabolismMetabolize drugsMicrobial communitiesIndividual speciesMetabolic modeMorganella morganiiMicrobiota metabolismGPCR-targeted drugsTricyclic systemThiophene motifsBacteria mixtureBacteriaMetabolomics investigationsMetabolismTargeting GPCRsDrug metabolitesPharmacological efficacyDrug transformationDrug structureDrugMetabolites
2024
Mucosal sugars delineate pyrazine vs pyrazinone autoinducer signaling in Klebsiella oxytoca
Hamchand R, Wang K, Song D, Palm N, Crawford J. Mucosal sugars delineate pyrazine vs pyrazinone autoinducer signaling in Klebsiella oxytoca. Nature Communications 2024, 15: 8902. PMID: 39406708, PMCID: PMC11480411, DOI: 10.1038/s41467-024-53185-6.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsK. oxytocaGeneral carbohydrate metabolismVirulence factor productionPLP-dependent enzymesAssociated with gutEnterobactin biosynthesisAutoinducer signalBacterial virulenceKlebsiella oxytocaSpecific carbohydratesHost immune responseCarbohydrate metabolismAutoinducerMolecular signalsVirulenceHistamine receptor H4BiosynthesisHost signalAcquisition responsesProtease inhibitorsPathwayHostLung pathologyLung isolationImmune responseHuman AKR1C3 binds agonists of GPR84 and participates in an expanded polyamine pathway
Dudkina N, Park H, Song D, Jain A, Khan S, Flavell R, Johnson C, Palm N, Crawford J. Human AKR1C3 binds agonists of GPR84 and participates in an expanded polyamine pathway. Cell Chemical Biology 2024, 32: 126-144.e18. PMID: 39163853, PMCID: PMC11748234, DOI: 10.1016/j.chembiol.2024.07.011.Peer-Reviewed Original ResearchCitationsConceptsHuman aldo-keto reductase family 1 member C3Mammalian fatty acid synthaseDNA double-strand break responseDouble-strand break responseAldo-keto reductase family 1 member C3Associated with poor prognosisPolyamine pathwayFatty acid synthesisFatty acid synthaseAcid synthaseAKR1C3 activityPoor prognosisBiochemical roleAcid synthesisClinical significanceLigand screeningFerroptosis resistanceDNA damageAKR1C3Metabolic diseasesDiverse cancersDNANADPHAgonists of GPR84GPR84The Xenorhabdus nematophila LrhA transcriptional regulator modulates production of γ-keto-N-acyl amides with inhibitory activity against mutualistic host nematode egg hatching
Lam Y, Hamchand R, Mucci N, Kauffman S, Dudkina N, Reagle E, Casanova-Torres Á, DeCuyper J, Chen H, Song D, Thomas M, Palm N, Goodrich-Blair H, Crawford J. The Xenorhabdus nematophila LrhA transcriptional regulator modulates production of γ-keto-N-acyl amides with inhibitory activity against mutualistic host nematode egg hatching. Applied And Environmental Microbiology 2024, 90: e00528-24. PMID: 38916293, PMCID: PMC11267870, DOI: 10.1128/aem.00528-24.Peer-Reviewed Original ResearchCitationsConceptsRegulatory hierarchyG protein-coupled receptorsSmall molecule signalsHost-bacteria interactionsSymbiotic relationshipNatural productsHuman G protein-coupled receptorsAmino acid metabolismRegulating amino acid metabolismNull mutantsDiverse natural productsSecondary metabolismNematode progeny productionPathogen interactionsGlobal regulatorNematode egg hatchingWild typeInsect hostsSecondary metabolitesHatching rateLrhAAcylated appendagesMolecular networksMolecule signalsAmide signalsA host–microbiota interactome reveals extensive transkingdom connectivity
Sonnert N, Rosen C, Ghazi A, Franzosa E, Duncan-Lowey B, González-Hernández J, Huck J, Yang Y, Dai Y, Rice T, Nguyen M, Song D, Cao Y, Martin A, Bielecka A, Fischer S, Guan C, Oh J, Huttenhower C, Ring A, Palm N. A host–microbiota interactome reveals extensive transkingdom connectivity. Nature 2024, 628: 171-179. PMID: 38509360, DOI: 10.1038/s41586-024-07162-0.Peer-Reviewed Original ResearchCitationsAltmetricConceptsNiche colonizationHost–microorganism interactionsHost-microbiota interactionsInvade host tissuesStrain-specific interactionsHost cells in vitroConspecific strainsEffect of indigenous microorganismsHost biologyHost proteinsSecreted proteinsCommensal microorganismsExoproteinsBacterial strainsDiverse phylogenyMolecular basisMyriad microorganismsTissue of originTissue isolationCells in vitroInteractomeBinding patternsHost tissuesBiological logicHost immune system in vivo
2023
Mitochondrial dysfunction promotes microbial composition that negatively impacts on ulcerative colitis development and progression
Peña-Cearra A, Song D, Castelo J, Palacios A, Lavín J, Azkargorta M, Elortza F, Fuertes M, Pascual-Itoiz M, Barriales D, Martín-Ruiz I, Fullaondo A, Aransay A, Rodríguez H, Palm N, Anguita J, Abecia L. Mitochondrial dysfunction promotes microbial composition that negatively impacts on ulcerative colitis development and progression. Npj Biofilms And Microbiomes 2023, 9: 74. PMID: 37805634, PMCID: PMC10560208, DOI: 10.1038/s41522-023-00443-y.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsFecal microbiota transplantationMCJ-deficient miceComplex I deficiencyMCJ deficiencyIntestinal microbiotaFecal microbiota transplantation experimentMitochondrial dysfunctionRRNA gene sequencesI deficiencyGut microbiota dysbiosisMagnetic activated cell sortingIncreased susceptibility to colitisGerm-free miceSusceptibility to DSS colitisProtein expression pathwaysHost mitochondriaIgA-SeqSusceptibility to colitisGene sequencesMicrobiota dysbiosisMicrobial compositionMicrobial biomarkersIgA coatingMicrobial signaturesExpression pathwaysHighly multiplexed bioactivity screening reveals human and microbiota metabolome-GPCRome interactions
Chen H, Rosen C, González-Hernández J, Song D, Potempa J, Ring A, Palm N. Highly multiplexed bioactivity screening reveals human and microbiota metabolome-GPCRome interactions. Cell 2023, 186: 3095-3110.e19. PMID: 37321219, PMCID: PMC10330796, DOI: 10.1016/j.cell.2023.05.024.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and Concepts
2022
Commensal microbiota from patients with inflammatory bowel disease produce genotoxic metabolites
Cao Y, Oh J, Xue M, Huh WJ, Wang J, Gonzalez-Hernandez JA, Rice TA, Martin AL, Song D, Crawford JM, Herzon SB, Palm NW. Commensal microbiota from patients with inflammatory bowel disease produce genotoxic metabolites. Science 2022, 378: eabm3233. PMID: 36302024, PMCID: PMC9993714, DOI: 10.1126/science.abm3233.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsColorectal cancerInflammatory bowel disease patientsBowel disease patientsInflammatory bowel diseaseIndigenous gut microbesBowel diseaseDisease patientsCommensal microbiotaDNA damageColon tumorigenesisElicit DNA damageGut microbesGenotoxic metabolitesGut commensalsMorganella morganiiPatientsGenotoxic chemicalsDiseaseMicrobiotaMetabolitesGenotoxicityCancerMiceFull spectrumDamage
Get In Touch
Copy Link
Contacts
Mailing Address
Immunobiology
10 Amistad RM102
New Haven, CT 06509
United States