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 detailsNelli Mnatsakanyan, PhD
Assistant Professor AdjunctAbout
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Titles
Assistant Professor Adjunct
Biography
Dr. Mnatsakanyan is currently an Associate Professor at the Pennsylvania State University College of Medicine. She obtained her Ph.D. from Yerevan State University and performed her postdoctoral work at Texas Tech University Health Sciences Center. As a postdoctoral fellow, she studied the catalytic mechanism of the ATP synthase and characterized an important structural unit, beta DELSEED loop region of the ATP synthase that couples ATP synthesis with subunit rotation. Dr. Mnatsakanyan's current research focuses on understanding the molecular mechanism and regulation of the enigmatic cell death channel located in the mitochondrial ATP synthase and its role in mitochondrial permeability transition (mPTP). The goals in her lab are threefold: 1) Identify and structurally characterize the molecular components of mPTP by using cryo-electron microscopy and cryo-electron tomography. 2) Functionally characterize the ATP synthase leak channel and its regulation by using electrophysiology techniques, patch-clamp and planar lipid bilayer recordings. 3) Generate CRISPR/Cas9-edited mice with a low probability of ATP synthase leak channel/mPTP opening and introduce these mutations in transgenic Alzheimer's disease (AD) mice to study if they will protect the mice from the onset of AD-like features. These studies may lead to the structure-based drug design of specific therapeutic compounds for the treatment of mPTP-related neurodegenerative disorders, aging and cancer.
Appointments
Endocrinology
Assistant Professor AdjunctPrimary
Other Departments & Organizations
Education & Training
- PhD
- Yerevan State University, Biophysics (2003)
- MS
- Yerevan State University (1999)
- BS
- Yerevan State University (1999)
Research
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Overview
Medical Research Interests
ORCID
0000-0001-5363-7409
Research at a Glance
Yale Co-Authors
Publications Timeline
Research Interests
Elizabeth Jonas, MD
Jing Wu
Pawel Licznerski, PhD
Marc C Llaguno, PhD
Kambiz Alavian, PhD
Mitochondria
ATP Synthetase Complexes
Neurodegenerative Diseases
alpha7 Nicotinic Acetylcholine Receptor
Publications
2025
Early-Stage Alcoholic Cardiomyopathy Highlighted by Metabolic Remodeling, Oxidative Stress, and Cardiac Myosin Dysfunction in Male Rats
Rasicci D, Ge J, Chen A, Wood N, Bodt S, Toro A, Evans A, Golestanian O, Amin S, Pruznak A, Mnatsakanyan N, Silberman Y, Dennis M, Previs M, Lang C, Yengo C. Early-Stage Alcoholic Cardiomyopathy Highlighted by Metabolic Remodeling, Oxidative Stress, and Cardiac Myosin Dysfunction in Male Rats. International Journal Of Molecular Sciences 2025, 26: 6766. PMID: 40725013, PMCID: PMC12296025, DOI: 10.3390/ijms26146766.Peer-Reviewed Original ResearchAltmetricMeSH Keywords and ConceptsConceptsIn vitro motilityAlcoholic cardiomyopathyCardiac myosinMetabolic remodelingATPase activityMitochondrial lipid metabolismMale Sprague-Dawley ratsEthanol-exposed animalsChronic ethanol useSprague-Dawley ratsEthanol-containing dietProteomic approachAlcohol exposureMale ratsMyosinH&E slidesOxidative stress mechanismsIn vitro oxidationEthanol useContractile machineryEarly-stageLipid metabolismCellular aspectsControl groupMyosin dysfunctionCryo-EM structure of the brine shrimp mitochondrial ATP synthase suggests an inactivation mechanism for the ATP synthase leak channel
Kumar A, da Fonseca Rezende e Mello J, Wu Y, Morris D, Mezghani I, Smith E, Rombauts S, Bossier P, Krahn J, Sigworth F, Mnatsakanyan N. Cryo-EM structure of the brine shrimp mitochondrial ATP synthase suggests an inactivation mechanism for the ATP synthase leak channel. Cell Death & Differentiation 2025, 32: 1518-1535. PMID: 40108410, PMCID: PMC12325954, DOI: 10.1038/s41418-025-01476-w.Peer-Reviewed Original ResearchCitationsAltmetricConceptsMitochondrial permeability transition poreATP synthaseMammalian ATP synthaseOpening of mitochondrial permeability transition poreMitochondrial inner membraneMitochondrial ATP synthaseC-terminal regionPermeability transition poreCryo-EM structureCrustacean Artemia franciscanaSingle-particle cryo-electron microscopyCryo-electron microscopyMammalian mitochondriaAccumulate large amountsCa2+-inducedInner membraneLeak channelsOuter membranePermeability transitionTransition poreE subunitCell deathMitochondrial dysfunctionMolecular mechanismsCa2+BPS2025 - Anti-tuberculosis drug bedaquiline ameliorates calcium-induced mitochondrial permeability transition by inhibiting the ATP synthase leak channel
Kumar A, Smith E, Mezghani I, Eedarapalli S, Wu Y, Amjad E, Park H, Mnatsakanyan N. BPS2025 - Anti-tuberculosis drug bedaquiline ameliorates calcium-induced mitochondrial permeability transition by inhibiting the ATP synthase leak channel. Biophysical Journal 2025, 124: 447a. DOI: 10.1016/j.bpj.2024.11.2381.Peer-Reviewed Original ResearchBPS2025 - The gating mechanism of mitochondrial ATP synthase leak channel
Kumar A, da Fonseca Rezende e Mello J, Wu Y, Betz L, Mezghani I, Smith E, Mnatsakanyan N. BPS2025 - The gating mechanism of mitochondrial ATP synthase leak channel. Biophysical Journal 2025, 124: 449a. DOI: 10.1016/j.bpj.2024.11.2393.Peer-Reviewed Original Research
2024
Mitochondrial ATP synthase as a novel therapeutic drug target in neurodegenerative and ischemic heart diseases
Kumar A, da Fonseca Rezende e Mello J, Wu Y, Mezghani I, Smith E, Mnatsakanyan N. Mitochondrial ATP synthase as a novel therapeutic drug target in neurodegenerative and ischemic heart diseases. Biochimica Et Biophysica Acta (BBA) - Bioenergetics 2024, 1865: 149307. DOI: 10.1016/j.bbabio.2024.149307.Peer-Reviewed Original ResearchProtonation-dependent ion flux in a mitochondrial leak channel
Wang Q, Mnatsakanyan N, Jonas E, Pias S. Protonation-dependent ion flux in a mitochondrial leak channel. Biophysical Journal 2024, 123: 522a. DOI: 10.1016/j.bpj.2023.11.3159.Peer-Reviewed Original ResearchCryo-electron microscopy studies reveal the inactivation mechanism of ATP synthase leak channel and its contribution to mitochondrial permeability transition
Kumar A, da Fonseca Rezende e Mello J, Wu Y, Morris D, Mnatsakanyan N. Cryo-electron microscopy studies reveal the inactivation mechanism of ATP synthase leak channel and its contribution to mitochondrial permeability transition. Biophysical Journal 2024, 123: 164a. DOI: 10.1016/j.bpj.2023.11.1100.Peer-Reviewed Original ResearchA curious study on the ATP synthase C-ring: A voltage-sensing leak channel
Nguyen J, Chan C, Layton J, Mnatsakanyan N, Singharoy A. A curious study on the ATP synthase C-ring: A voltage-sensing leak channel. Biophysical Journal 2024, 123: 249a. DOI: 10.1016/j.bpj.2023.11.1573.Peer-Reviewed Original ResearchCitations
2022
Fluid shear stress enhances proliferation of breast cancer cells via downregulation of the c-subunit of the F1FO ATP synthase
Park HA, Brown SR, Jansen J, Dunn T, Scott M, Mnatsakanyan N, Jonas EA, Kim Y. Fluid shear stress enhances proliferation of breast cancer cells via downregulation of the c-subunit of the F1FO ATP synthase. Biochemical And Biophysical Research Communications 2022, 632: 173-180. PMID: 36209586, PMCID: PMC10024463, DOI: 10.1016/j.bbrc.2022.09.084.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsMitochondrial ATP synthase c-subunit leak channel triggers cell death upon loss of its F1 subcomplex
Mnatsakanyan N, Park HA, Wu J, He X, Llaguno MC, Latta M, Miranda P, Murtishi B, Graham M, Weber J, Levy RJ, Pavlov EV, Jonas EA. Mitochondrial ATP synthase c-subunit leak channel triggers cell death upon loss of its F1 subcomplex. Cell Death & Differentiation 2022, 29: 1874-1887. PMID: 35322203, PMCID: PMC9433415, DOI: 10.1038/s41418-022-00972-7.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsMitochondrial permeability transitionATP synthase c-subunitCell deathMitochondrial ATP synthaseChannel activityCellular energy productionLeak channelsVoltage-gated ion channelsF1 subcomplexATP synthaseC subunitInner membraneProkaryotic hostsCell stressPermeability transitionIon channelsGating mechanismOsmotic changesLarge conductanceC-ringChannels triggersNeuronal deathF1SubcomplexOsmotic gradient
Academic Achievements & Community Involvement
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Activities
activity "Biomedicine & Pharmacotherapy" Elsevier Journal
2018 - PresentJournal ServiceAssociate EditorDetailsAssociate Editoractivity Society of Neuroscience
09/01/2011 - PresentProfessional OrganizationsMemberDetailsMemberactivity Biophysical Society
09/01/2011 - PresentProfessional OrganizationsMemberDetailsMemberactivity "Bioenergetics, Mitochondria and Metabolism" Subgroup, Biophysical Society
2015 - PresentProfessional OrganizationsMemberDetailsMemberactivity Alzheimer’s Association International Society to Advance Alzheimer’s Research and Treatment (ISTAART)
04/01/2019 - PresentProfessional OrganizationsMemberDetailsMember
Honors
honor RF1 Award
05/15/2021National AwardNational Institute on AgingDetailsUnited Stateshonor Young Bioenergeticist Award
02/19/2018National AwardBiophysical SocietyDetailsUnited Stateshonor K01 Research Scientist Development Award
06/01/2017National AwardNational Institute on AgingDetailsUnited States
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