2022
Selenoprotein TXNRD3 supports male fertility via the redox regulation of spermatogenesis
Dou Q, Turanov AA, Mariotti M, Hwang JY, Wang H, Lee SG, Paulo JA, Yim SH, Gygi SP, Chung JJ, Gladyshev VN. Selenoprotein TXNRD3 supports male fertility via the redox regulation of spermatogenesis. Journal Of Biological Chemistry 2022, 298: 102183. PMID: 35753352, PMCID: PMC9352919, DOI: 10.1016/j.jbc.2022.102183.Peer-Reviewed Original ResearchConceptsThioredoxin/glutathione reductaseThiol redox controlSperm quality controlThiol redox statusGene duplicationThiol oxidoreductasesRedox regulationProteomic analysisRedox controlGross phenotypeThioredoxin reductaseSperm maturationMovement phenotypesSperm cellsRedox statusMale reproductionKnockout animalsMale fertilityGlutathione reductaseCritical roleReductasePhenotypeTXNRD3Knockout miceSpermatogenesisC2cd6-encoded CatSperτ targets sperm calcium channel to Ca2+ signaling domains in the flagellar membrane
Hwang JY, Wang H, Lu Y, Ikawa M, Chung JJ. C2cd6-encoded CatSperτ targets sperm calcium channel to Ca2+ signaling domains in the flagellar membrane. Cell Reports 2022, 38: 110226. PMID: 34998468, PMCID: PMC8857959, DOI: 10.1016/j.celrep.2021.110226.Peer-Reviewed Original ResearchConceptsFlagellar membraneFlagellar membrane targetingC2 domain proteinsCatSper channelsCatSper channel complexMammalian sperm cellsSperm hyperactivated motilityMale fertilityMembrane targetingTrafficking machineryDomain proteinsLoss of functionHyperactivated motilitySpatiotemporal CaChannel assemblyMolecular mechanismsSperm cellsChannel complexFlagellaMotilityC2CD6MembraneCalcium channelsMachineryProtein
2020
Sperm ion channels and transporters in male fertility and infertility
Wang H, McGoldrick LL, Chung JJ. Sperm ion channels and transporters in male fertility and infertility. Nature Reviews Urology 2020, 18: 46-66. PMID: 33214707, PMCID: PMC7852504, DOI: 10.1038/s41585-020-00390-9.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsSperm ion channelsIon channelsSperm cellsMammalian sperm cellsIon signalingDynamic regulationDefective sperm functionFemale reproductive tractChannel CatSperHuman geneticsMembrane receptorsMale fertilityHealth careAttractive targetDirect electrophysiological recordingsOverall health careHuman infertilityReproductive health careSperm functionPrincipal Ca2Development of contraceptivesSperm activityGene variantsReproductive tractGenetic abnormalities3D in situ imaging of female reproductive tract reveals molecular signatures of fertilizing spermatozoa in mice
Ded L, Hwang JY, Miki K, Shi HF, Chung JJ. 3D in situ imaging of female reproductive tract reveals molecular signatures of fertilizing spermatozoa in mice. ELife 2020, 9: e62043. PMID: 33078708, PMCID: PMC7707823, DOI: 10.7554/elife.62043.Peer-Reviewed Original ResearchConceptsFemale reproductive tractFemale tractCalcium channel complexSitu molecular imagingReproductive tractMolecular insightsSuccessful fertilizationCatSper channelsMolecular signaturesSperm cellsSperm selectionChannel complexMouse spermatozoaFertilization siteSpermSperm migrationSpermatozoaMammalsPhosphorylationCatSper1ProteinSitu imagingAcrosomeUtero-tubal junctionSelection
2017
CatSperζ regulates the structural continuity of sperm Ca2+ signaling domains and is required for normal fertility
Chung JJ, Miki K, Kim D, Shim SH, Shi HF, Hwang JY, Cai X, Iseri Y, Zhuang X, Clapham DE. CatSperζ regulates the structural continuity of sperm Ca2+ signaling domains and is required for normal fertility. ELife 2017, 6: e23082. PMID: 28226241, PMCID: PMC5362262, DOI: 10.7554/elife.23082.Peer-Reviewed Original ResearchConceptsMammalian female reproductive tractSevere male subfertilityFemale reproductive tractIon channel complexNovel subunitCatSper complexEvolutionary adaptationMale subfertilityReproductive tractMouse spermSperm Ca2Normal fertilityTargeted disruptionSperm cellsFlagellaChannel complexFemale uterusSubunitsEpididymal spermatozoaSpermComplexesFertilizationSubfertilityUterusMice