Adjunct Faculty
Adjunct faculty typically have an academic or research appointment at another institution and contribute or collaborate with one or more School of Medicine faculty members or programs.
Adjunct rank detailsSorin Fedeles, PhD, MBA
Assistant Professor AdjunctAbout
Research
Publications
2025
Qualitative Analysis and Comparison of Externally Led Patient-Focused Drug Development (EL-PFDD) Concepts for Autosomal Recessive Polycystic Kidney Disease (ARPKD) Against SONG Initiatives
Soyfer B, Fedeles S, Ruyle W, Hoover E, Liebau M, Hartung E, Dell K, Guay-Woodford L, Perrone R, Oberdhan D. Qualitative Analysis and Comparison of Externally Led Patient-Focused Drug Development (EL-PFDD) Concepts for Autosomal Recessive Polycystic Kidney Disease (ARPKD) Against SONG Initiatives. Kidney Medicine 2025, 101110. DOI: 10.1016/j.xkme.2025.101110.Peer-Reviewed Original ResearchAutosomal recessive polycystic kidney diseasePatient-focused drug developmentRecessive polycystic kidney diseaseQuality of lifePolycystic kidney diseasePatient perspectiveARPKD patientsKidney diseaseProgressive kidney dysfunctionEarly-onset diseaseClinical trial designDrug developmentRenal manifestationsOutcome measuresLiver complicationsHepatic complicationsStandardized outcomesNovel therapiesKidney dysfunctionPathogenic variantsPKHD1 geneDisease burdenDisease managementDisease progressionClinical heterogeneityIn vivo base editing reduces liver cysts in autosomal dominant polycystic kidney disease
Ibel A, Bhardwaj R, Yilmaz D, Kong S, Wendlinger S, Cordero C, Papaioannou D, Papazian M, Schönauer R, Meng Q, Eckardt K, Hassan F, Volpe I, Klämbt V, Halbritter J, Fedeles S, Krappitz M, Kaminski M. In vivo base editing reduces liver cysts in autosomal dominant polycystic kidney disease. Molecular Therapy 2025 PMID: 40842155, DOI: 10.1016/j.ymthe.2025.08.026.Peer-Reviewed Original ResearchAutosomal dominant polycystic kidney diseasePathogenic variantsDominant polycystic kidney diseaseGenome editingPolycystic kidney diseasePolycystin-1 expressionEditing in vitroLiver cystsKidney diseasePKD1 variantsGenetic kidney disordersPrimary renal epithelial cellsMissense variantsPolycystin-1Limited treatment optionsGenetic basisBase editingRenal epithelial cellsDisease phenotypeReverse the diseasePatient cohortTreatment optionsKnockin micePKD1PKD2Valosin-containing protein in ciliary morphology: a novel target in ADPKD
Pioppini C, Bhardwaj R, Schönauer R, Halbritter J, Hassan F, Eckardt K, Fedeles S, Yilmaz D, Krappitz M. Valosin-containing protein in ciliary morphology: a novel target in ADPKD. American Journal Of Physiology. Renal Physiology 2025, 329: f300-f310. PMID: 40662578, DOI: 10.1152/ajprenal.00032.2025.Peer-Reviewed Original ResearchConceptsValosin-containing proteinER-associated degradationVCP inhibitionUnfolded protein responseProteins polycystin-1Autosomal dominant polycystic kidney diseaseCilia assemblyInhibition of Valosin-Containing ProteinPolycystin-2ER stress-dependent apoptosisStress-dependent apoptosisCiliary functionPharmacological inhibitionKidney cyst formationCiliary proteinsPolycystin-1Genetic relationshipsProtein responseCystic phenotypeProtein burdenUPR activationCiliary dynamicsPrimary ciliaCiliary morphologyCilia length
2024
Role of Valosin-Containing Protein (VCP) in Ciliary Morphology and ADPKD: Exploring VCP as a Novel Genetic Interactor in Disease Progression
Pioppini C, Bhardwaj R, Fedeles S, Yilmaz D, Krappitz M. Role of Valosin-Containing Protein (VCP) in Ciliary Morphology and ADPKD: Exploring VCP as a Novel Genetic Interactor in Disease Progression. Journal Of The American Society Of Nephrology 2024, 35: 10.1681/asn.2024w6rq11tc. DOI: 10.1681/asn.2024w6rq11tc.Peer-Reviewed Original ResearchQualitative Analysis and Comparison of Externally Led, Patient-Focused Drug Development (EL-PFDD) Concepts for Autosomal Recessive Polycystic Kidney Disease (ARPKD) against Standardized Outcomes in Nephrology (SONG) Initiatives
Soyfer B, Fedeles S, Vanasco W, Perrone R, Liebau M, Hartung E, Dell K, Guay-Woodford L, Hoover E, Oberdhan D. Qualitative Analysis and Comparison of Externally Led, Patient-Focused Drug Development (EL-PFDD) Concepts for Autosomal Recessive Polycystic Kidney Disease (ARPKD) against Standardized Outcomes in Nephrology (SONG) Initiatives. Journal Of The American Society Of Nephrology 2024, 35: 10.1681/asn.2024fj4z3w71. DOI: 10.1681/asn.2024fj4z3w71.Peer-Reviewed Original ResearchChemical Modulation of the Ire1α-Xbp1 Pathway Reduces Cyst Size in ADPKD Mouse and Human Three-Dimensional Spheroids
Hasan F, Bhardwaj R, Rehman M, Cai Y, Dong K, Cordido A, Pioppini C, Yilmaz D, Tian X, Somlo S, Krappitz M, Fedeles S. Chemical Modulation of the Ire1α-Xbp1 Pathway Reduces Cyst Size in ADPKD Mouse and Human Three-Dimensional Spheroids. Journal Of The American Society Of Nephrology 2024, 35: 10.1681/asn.2024x8qpvhm3. DOI: 10.1681/asn.2024x8qpvhm3.Peer-Reviewed Original ResearchA 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 Research