Sorin Fedeles, PhD, MBA
Assistant Professor AdjunctCards
About
Research
Publications
2024
A synthetic agent ameliorates polycystic kidney disease by promoting apoptosis of cystic cells through increased oxidative stress
Fedeles B, Bhardwaj R, Ishikawa Y, Khumsubdee S, Krappitz M, Gubina N, Volpe I, Andrade D, Westergerling P, Staudner T, Campolo J, Liu S, Dong K, Cai Y, Rehman M, Gallagher A, Ruchirawat S, Croy R, Essigmann J, Fedeles S, Somlo S. A synthetic agent ameliorates polycystic kidney disease by promoting apoptosis of cystic cells through increased oxidative stress. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2317344121. PMID: 38241440, PMCID: PMC10823221, DOI: 10.1073/pnas.2317344121.Peer-Reviewed Original ResearchConceptsCyst cellsAutosomal dominant polycystic kidney diseaseMouse models of autosomal dominant polycystic kidney diseasePolycystic kidney diseaseModel of autosomal dominant polycystic kidney diseaseKidney diseaseDeveloped primersMitochondrial oxidative stressPathophysiology of autosomal dominant polycystic kidney diseaseOxidative stressInduce apoptosisMitochondrial respirationCystic cellsUp-regulating aerobic glycolysisHomozygous inactivationMonogenic causeDominant polycystic kidney diseaseAerobic glycolysisRenal replacement therapyApoptosisEnd-stage kidney diseaseAnti-tumor agentsAdult mouse modelChronic kidney diseaseAlkylate DNA
2023
Development of a Clinical Trial Enrichment (CTE) Tool for Autosomal Dominant Polycystic Kidney Disease
Aggarwal V, Zaph S, Leiser R, Quinlan L, Cui Z, Morales J, Miller C, Dasmahapatra P, Vanasco W, Romero K, Perrone R, Fedeles S. Development of a Clinical Trial Enrichment (CTE) Tool for Autosomal Dominant Polycystic Kidney Disease. Journal Of The American Society Of Nephrology 2023, 34: 206-206. DOI: 10.1681/asn.20233411s1206d.Peer-Reviewed Original ResearchInactivation of Ire1alpha Endoribonuclease Domain Slows Down ADPKD in Orthologous Mouse Models
Bhardwaj R, Volpe I, Yilmaz D, Pioppini C, Roy K, Rehman M, Cai Y, Krappitz M, Somlo S, Fedeles S. Inactivation of Ire1alpha Endoribonuclease Domain Slows Down ADPKD in Orthologous Mouse Models. Journal Of The American Society Of Nephrology 2023, 34: 19-19. DOI: 10.1681/asn.20233411s119b.Peer-Reviewed Original ResearchDephosphorylation Facilitates Trafficking of Mutant Polycystin-2 to Cilia
Cai Y, Dong K, Spitzer M, Geiges L, Tian X, Krappitz M, Diggs L, Wei Z, Cordido A, Pei S, Fedeles S, Somlo S. Dephosphorylation Facilitates Trafficking of Mutant Polycystin-2 to Cilia. Journal Of The American Society Of Nephrology 2023, 34: 560-560. DOI: 10.1681/asn.20233411s1560b.Peer-Reviewed Original ResearchCorrigendum to “WCN23-1242 Genetic interaction between XBP1 and Pkd1 modulates ADPKD progression” [Kidney International Reports Volume 8, Issue 3, Supplement, March 2023, Page S250]
Krappitz M, Pioppini C, Bhardwaj R, Duygu E, Hollmann T, Somlo S, Fedeles S. Corrigendum to “WCN23-1242 Genetic interaction between XBP1 and Pkd1 modulates ADPKD progression” [Kidney International Reports Volume 8, Issue 3, Supplement, March 2023, Page S250]. Kidney International Reports 2023, 8: 2182. PMID: 37850015, PMCID: PMC10577355, DOI: 10.1016/j.ekir.2023.08.001.Peer-Reviewed Original Research
2022
Polycystic Kidney Disease Drug Development: A Conference Report
Liebau M, Mekahli D, Perrone R, Soyfer B, Fedeles S. Polycystic Kidney Disease Drug Development: A Conference Report. Kidney Medicine 2022, 5: 100596. PMID: 36698747, PMCID: PMC9867973, DOI: 10.1016/j.xkme.2022.100596.Peer-Reviewed Original ResearchAutosomal dominant polycystic kidney diseasePolycystic kidney diseaseAutosomal recessive polycystic kidney diseaseRecessive polycystic kidney diseaseKidney diseaseProgression of ADPKDSide effect profileChronic kidney failureDisease-modifying therapiesAutosomal dominant polycystic liver diseasePolycystic liver diseaseTotal kidney volumeDominant polycystic kidney diseaseCritical Path InstituteMechanism of actionCommon monogenic disorderDrug development toolsEffect profileLiver diseaseKidney failureOutcomes ConsortiumEnrichment biomarkerClinical trialsKidney volumeSurrogate endpointsXBP1 Activation Reduces Severity of Polycystic Kidney Disease due to a Nontruncating Polycystin-1 Mutation in Mice
Krappitz M, Bhardwaj R, Dong K, Staudner T, Yilmaz DE, Pioppini C, Westergerling P, Ruemmele D, Hollmann T, Nguyen TA, Cai Y, Gallagher AR, Somlo S, Fedeles S. XBP1 Activation Reduces Severity of Polycystic Kidney Disease due to a Nontruncating Polycystin-1 Mutation in Mice. Journal Of The American Society Of Nephrology 2022, 34: 110-121. PMID: 36270750, PMCID: PMC10101557, DOI: 10.1681/asn.2021091180.Peer-Reviewed Original ResearchConceptsPolycystin-1Polycystin-2Functional polycystin-1Amino acid substitution mutationsAutosomal dominant polycystic kidney diseaseIntegral membrane proteinsTranscription factor XBP1Unfolded protein responsePost-translational maturationAcid substitution mutationsEndoplasmic reticulum chaperoneCiliary traffickingXBP1 activityChaperone functionIntegral membraneActive XBP1Polycystic kidney diseaseMembrane proteinsPC1 functionsPrimary ciliaProtein responseHypomorphic mutationsTransgenic activationSubstitution mutationsTransgenic expressionDrug Development for Cystic Kidney Diseases
Fedeles S, Perrone RD. Drug Development for Cystic Kidney Diseases. Clinical Journal Of The American Society Of Nephrology 2022, 17: 1549-1550. PMID: 35998972, PMCID: PMC9528273, DOI: 10.2215/cjn.04910422.Peer-Reviewed Original Research
2020
Disrupting polycystin-2 EF hand Ca2+ affinity does not alter channel function or contribute to polycystic kidney disease
Vien TN, Ng LCT, Smith JM, Dong K, Krappitz M, Gainullin VG, Fedeles S, Harris PC, Somlo S, DeCaen PG. Disrupting polycystin-2 EF hand Ca2+ affinity does not alter channel function or contribute to polycystic kidney disease. Journal Of Cell Science 2020, 133: jcs255562. PMID: 33199522, PMCID: PMC7774883, DOI: 10.1242/jcs.255562.Peer-Reviewed Original ResearchConceptsAutosomal dominant polycystic kidney diseasePolycystic kidney diseaseKidney diseaseDominant polycystic kidney diseaseChannel functionPhysiological membrane potentialsPolycystin-2Primary ciliaDuct cellsNew mouseChannel activityDiseaseIon channelsDistinct mutationsInternal CaMembrane potentialChannel regulationHand associationEF-hand Ca2Regulatory mechanismsMutationsMice
2019
Spliced XBP1 Rescues Renal Interstitial Inflammation Due to Loss of Sec63 in Collecting Ducts
Ishikawa Y, Fedeles S, Marlier A, Zhang C, Gallagher AR, Lee AH, Somlo S. Spliced XBP1 Rescues Renal Interstitial Inflammation Due to Loss of Sec63 in Collecting Ducts. Journal Of The American Society Of Nephrology 2019, 30: 443-459. PMID: 30745418, PMCID: PMC6405156, DOI: 10.1681/asn.2018060614.Peer-Reviewed Original ResearchKidney injuryInterstitial inflammationKidney functional declineChronic kidney injuryRenal interstitial inflammationAutosomal dominant polycystic liver diseasePolycystic liver diseaseDistal nephron segmentsDouble knockout micePolycystic kidney diseaseEndoplasmic reticulum stressOvert activationRenal effectsKidney functionLiver diseaseKidney diseaseNeonatal miceFunctional declineNovel genetic modelMyofibroblast activationKnockout miceDisparate etiologiesLate onsetCollecting ductsNephron segments
Academic Achievements & Community Involvement
News
News
- October 21, 2022
Researchers Demonstrate XBP1 Reduces Severity of Polycystic Kidney Disease
- January 12, 2022
Kidney Disease Research Supported by Department of Defense
- October 14, 2021Source: Critical Path Institute
Academic Innovation Leader and Experienced Scientist to Join C-Path’s PKD Consortium
- June 20, 2019
Fedeles Wins Inaugural Young Investigator Award from PKDF