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Soni RK. Frontiers in Plasma Proteome Profiling Platforms: Innovations and Applications. Res Sq 2024:rs.3.rs-4193960. [PMID: 38645164 PMCID: PMC11030536 DOI: 10.21203/rs.3.rs-4193960/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Biomarkers play a crucial role in advancing precision medicine by enabling more targeted and individualized approaches to diagnosis and treatment. Various biofluids, including serum, plasma, cerebrospinal fluid (CSF), saliva, tears, pancreatic cyst fluids, and urine, have been identified as rich sources of potential for the early detection of disease biomarkers in conditions such as cancer, cardiovascular diseases, and neurodegenerative disorders. The analysis of plasma and serum in proteomics research encounters challenges due to their high complexity and the wide dynamic range of protein abundance. These factors impede the sensitivity, coverage, and precision of protein detection when employing mass spectrometry, a widely utilized technology in discovery proteomics. Conventional approaches such as neat plasma workflow are inefficient in accurately quantifying low-abundant proteins, including those associated with tissue leakage, immune response molecules, interleukins, cytokines, and interferons. Moreover, the manual nature of the workflow poses a significant hurdle in conducting large cohort studies. In this study, our focus is on comparing workflows for plasma proteomic profiling to establish a methodology that is not only sensitive and reproducible but also applicable for large cohort studies in biomarker discovery. Our investigation revealed that the SeerProteographXT workflow outperforms other workflows in terms of plasma proteome depth, quantitative accuracy, and reproducibility while offering complete automation of sample preparation. Notably, SeerProteographXT demonstrates versatility by applying it to various types of biofluids. Additionally, the proteins quantified widely cover secretory proteins in peripheral blood, and the pathway analysis enriched with relevant components such as interleukins, tissue necrosis factors, chemokines, and B and T cell receptors provides valuable insights. These proteins, often challenging to quantify in complex biological samples, hold potential as early detection markers for various diseases, thereby contributing to the improvement of patient care quality.
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Souidi M, Resta J, Dridi H, Sleiman Y, Reiken S, Formoso K, Colombani S, Amédro P, Meyer P, Charrabi A, Vincenti M, Liu Y, Soni RK, Lezoualc'h F, Stéphane Blot D, Rivier F, Cazorla O, Parini A, Marks AR, Mialet‐Perez J, Lacampagne A, Meli AC. Ryanodine receptor dysfunction causes senescence and fibrosis in Duchenne dilated cardiomyopathy. J Cachexia Sarcopenia Muscle 2024; 15:536-551. [PMID: 38221511 PMCID: PMC10995256 DOI: 10.1002/jcsm.13411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 10/03/2023] [Accepted: 11/23/2023] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND Duchenne muscular dystrophy (DMD) is an X-linked disorder characterized by progressive muscle weakness due to the absence of functional dystrophin. DMD patients also develop dilated cardiomyopathy (DCM). We have previously shown that DMD (mdx) mice and a canine DMD model (GRMD) exhibit abnormal intracellular calcium (Ca2+) cycling related to early-stage pathological remodelling of the ryanodine receptor intracellular calcium release channel (RyR2) on the sarcoplasmic reticulum (SR) contributing to age-dependent DCM. METHODS Here, we used hiPSC-CMs from DMD patients selected by Speckle-tracking echocardiography and canine DMD cardiac biopsies to assess key early-stage Duchenne DCM features. RESULTS Dystrophin deficiency was associated with RyR2 remodelling and SR Ca2+ leak (RyR2 Po of 0.03 ± 0.01 for HC vs. 0.16 ± 0.01 for DMD, P < 0.01), which led to early-stage defects including senescence. We observed higher levels of senescence markers including p15 (2.03 ± 0.75 for HC vs. 13.67 ± 5.49 for DMD, P < 0.05) and p16 (1.86 ± 0.83 for HC vs. 10.71 ± 3.00 for DMD, P < 0.01) in DMD hiPSC-CMs and in the canine DMD model. The fibrosis was increased in DMD hiPSC-CMs. We observed cardiac hypocontractility in DMD hiPSC-CMs. Stabilizing RyR2 pharmacologically by S107 prevented most of these pathological features, including the rescue of the contraction amplitude (1.65 ± 0.06 μm for DMD vs. 2.26 ± 0.08 μm for DMD + S107, P < 0.01). These data were confirmed by proteomic analyses, in particular ECM remodelling and fibrosis. CONCLUSIONS We identified key cellular damages that are established earlier than cardiac clinical pathology in DMD patients, with major perturbation of the cardiac ECC. Our results demonstrated that cardiac fibrosis and premature senescence are induced by RyR2 mediated SR Ca2+ leak in DMD cardiomyocytes. We revealed that RyR2 is an early biomarker of DMD-associated cardiac damages in DMD patients. The progressive and later DCM onset could be linked with the RyR2-mediated increased fibrosis and premature senescence, eventually causing cell death and further cardiac fibrosis in a vicious cycle leading to further hypocontractility as a major feature of DCM. The present study provides a novel understanding of the pathophysiological mechanisms of the DMD-induced DCM. By targeting RyR2 channels, it provides a potential pharmacological treatment.
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Affiliation(s)
- Monia Souidi
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Jessica Resta
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - Haikel Dridi
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Yvonne Sleiman
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Steve Reiken
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Karina Formoso
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - Sarah Colombani
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Pascal Amédro
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric and Congenital Cardiology, M3C Regional Reference CHD Centre, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Pierre Meyer
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric Neurology, Reference Center for Neuromuscular Diseases AOC, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Azzouz Charrabi
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Marie Vincenti
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric and Congenital Cardiology, M3C Regional Reference CHD Centre, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Yang Liu
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared ResourceHerbert Irving Comprehensive Cancer CenterNew YorkNYUSA
| | - Frank Lezoualc'h
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - D.V.M. Stéphane Blot
- IMRB ‐ Biology of the neuromuscular system, INSERM, UPEC, EFS, EnvAMaisons‐AlfortFrance
| | - François Rivier
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric Neurology, Reference Center for Neuromuscular Diseases AOC, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Olivier Cazorla
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Angelo Parini
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - Andrew R. Marks
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Jeanne Mialet‐Perez
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
- Present address:
MitoLab Team, UMR CNRS 6015, INSERM U1083, MitoVasc InstituteAngers UniversityAngersFrance
| | - Alain Lacampagne
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Albano C. Meli
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
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Qiu B, Zandkarimi F, Bezjian CT, Reznik E, Soni RK, Gu W, Jiang X, Stockwell BR. Phospholipids with two polyunsaturated fatty acyl tails promote ferroptosis. Cell 2024; 187:1177-1190.e18. [PMID: 38366593 PMCID: PMC10940216 DOI: 10.1016/j.cell.2024.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 11/16/2023] [Accepted: 01/19/2024] [Indexed: 02/18/2024]
Abstract
Phospholipids containing a single polyunsaturated fatty acyl tail (PL-PUFA1s) are considered the driving force behind ferroptosis, whereas phospholipids with diacyl-PUFA tails (PL-PUFA2s) have been rarely characterized. Dietary lipids modulate ferroptosis, but the mechanisms governing lipid metabolism and ferroptosis sensitivity are not well understood. Our research revealed a significant accumulation of diacyl-PUFA phosphatidylcholines (PC-PUFA2s) following fatty acid or phospholipid treatments, correlating with cancer cell sensitivity to ferroptosis. Depletion of PC-PUFA2s occurred in aging and Huntington's disease brain tissue, linking it to ferroptosis. Notably, PC-PUFA2s interacted with the mitochondrial electron transport chain, generating reactive oxygen species (ROS) for initiating lipid peroxidation. Mitochondria-targeted antioxidants protected cells from PC-PUFA2-induced mitochondrial ROS (mtROS), lipid peroxidation, and cell death. These findings reveal a critical role for PC-PUFA2s in controlling mitochondria homeostasis and ferroptosis in various contexts and explain the ferroptosis-modulating mechanisms of free fatty acids. PC-PUFA2s may serve as diagnostic and therapeutic targets for modulating ferroptosis.
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Affiliation(s)
- Baiyu Qiu
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Fereshteh Zandkarimi
- Department of Chemistry, Columbia University, New York, NY 10027, USA; Mass Spectrometry Core Facility, Columbia University, New York, NY 10027, USA
| | - Carla T Bezjian
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Eduard Reznik
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Wei Gu
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| | - Brent R Stockwell
- Department of Chemistry, Columbia University, New York, NY 10027, USA; Department of Biological Sciences, Columbia University, New York, NY 10027, USA; Department of Pathology and Cell Biology and Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA.
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Mann J, Reznik E, Santer M, Fongheiser MA, Smith N, Hirschhorn T, Zandkarimi F, Soni RK, Dafré AL, Miranda-Vizuete A, Farina M, Stockwell BR. Ferroptosis inhibition by oleic acid mitigates iron-overload-induced injury. Cell Chem Biol 2024; 31:249-264.e7. [PMID: 37944523 PMCID: PMC10922137 DOI: 10.1016/j.chembiol.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 07/24/2023] [Accepted: 10/13/2023] [Indexed: 11/12/2023]
Abstract
Iron overload, characterized by accumulation of iron in tissues, induces a multiorgan toxicity whose mechanisms are not fully understood. Using cultured cell lines, Caenorhabditis elegans, and mice, we found that ferroptosis occurs in the context of iron-overload-mediated damage. Exogenous oleic acid protected against iron-overload-toxicity in cell culture and Caenorhabditis elegans by suppressing ferroptosis. In mice, oleic acid protected against FAC-induced liver lipid peroxidation and damage. Oleic acid changed the cellular lipid composition, characterized by decreased levels of polyunsaturated fatty acyl phospholipids and decreased levels of ether-linked phospholipids. The protective effect of oleic acid in cells was attenuated by GW6471 (PPAR-α antagonist), as well as in Caenorhabditis elegans lacking the nuclear hormone receptor NHR-49 (a PPAR-α functional homologue). These results highlight ferroptosis as a driver of iron-overload-mediated damage, which is inhibited by oleic acid. This monounsaturated fatty acid represents a potential therapeutic approach to mitigating organ damage in iron overload individuals.
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Affiliation(s)
- Josiane Mann
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Eduard Reznik
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Melania Santer
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Mark A Fongheiser
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Nailah Smith
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Tal Hirschhorn
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | | | - Rajesh Kumar Soni
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Alcir Luiz Dafré
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Antonio Miranda-Vizuete
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013, Seville, Spain
| | - Marcelo Farina
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil; Department of Biological Sciences, Columbia University, New York, NY 10027, USA.
| | - Brent R Stockwell
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA; Department of Chemistry, Columbia University, New York, NY 10027, USA; Irving Institute for Cancer Dynamics, Columbia University, New York, NY 10027, USA; Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York. NY 10032, USA.
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Montoya S, Bourcier J, Noviski M, Lu H, Thompson MC, Chirino A, Jahn J, Sondhi AK, Gajewski S, Tan YSM, Yung S, Urban A, Wang E, Han C, Mi X, Kim WJ, Sievers Q, Auger P, Bousquet H, Brathaban N, Bravo B, Gessner M, Guiducci C, Iuliano JN, Kane T, Mukerji R, Reddy PJ, Powers J, Sanchez Garcia de Los Rios M, Ye J, Barrientos Risso C, Tsai D, Pardo G, Notti RQ, Pardo A, Affer M, Nawaratne V, Totiger TM, Pena-Velasquez C, Rhodes JM, Zelenetz AD, Alencar A, Roeker LE, Mehta S, Garippa R, Linley A, Soni RK, Skånland SS, Brown RJ, Mato AR, Hansen GM, Abdel-Wahab O, Taylor J. Kinase-impaired BTK mutations are susceptible to clinical-stage BTK and IKZF1/3 degrader NX-2127. Science 2024; 383:eadi5798. [PMID: 38301010 DOI: 10.1126/science.adi5798] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 12/08/2023] [Indexed: 02/03/2024]
Abstract
Increasing use of covalent and noncovalent inhibitors of Bruton's tyrosine kinase (BTK) has elucidated a series of acquired drug-resistant BTK mutations in patients with B cell malignancies. Here we identify inhibitor resistance mutations in BTK with distinct enzymatic activities, including some that impair BTK enzymatic activity while imparting novel protein-protein interactions that sustain B cell receptor (BCR) signaling. Furthermore, we describe a clinical-stage BTK and IKZF1/3 degrader, NX-2127, that can bind and proteasomally degrade each mutant BTK proteoform, resulting in potent blockade of BCR signaling. Treatment of chronic lymphocytic leukemia with NX-2127 achieves >80% degradation of BTK in patients and demonstrates proof-of-concept therapeutic benefit. These data reveal an oncogenic scaffold function of mutant BTK that confers resistance across clinically approved BTK inhibitors but is overcome by BTK degradation in patients.
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Affiliation(s)
- Skye Montoya
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jessie Bourcier
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Hao Lu
- Nurix Therapeutics, San Francisco, CA, USA
| | - Meghan C Thompson
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexandra Chirino
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jacob Jahn
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Anya K Sondhi
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | | | | | | | - Aleksandra Urban
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- K.G. Jebsen Centre for B Cell Malignancies, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Eric Wang
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Cuijuan Han
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Xiaoli Mi
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Won Jun Kim
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Quinlan Sievers
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul Auger
- Nurix Therapeutics, San Francisco, CA, USA
| | | | | | | | | | | | | | - Tim Kane
- Nurix Therapeutics, San Francisco, CA, USA
| | | | | | | | | | - Jordan Ye
- Nurix Therapeutics, San Francisco, CA, USA
| | - Carla Barrientos Risso
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Daniel Tsai
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Gabriel Pardo
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ryan Q Notti
- Laboratory of Molecular Electron Microscopy, Rockefeller University, New York, NY, USA
| | - Alejandro Pardo
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Maurizio Affer
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Vindhya Nawaratne
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Tulasigeri M Totiger
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Camila Pena-Velasquez
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joanna M Rhodes
- Division of Hematology-Oncology, Department of Medicine at Zucker School of Medicine at Hofstra/Northwell, CLL Research and Treatment Center, Lake Success, NY, USA
| | - Andrew D Zelenetz
- Lymphoma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alvaro Alencar
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Lindsey E Roeker
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sanjoy Mehta
- Gene Editing and Screening Core Facility, Department of Cancer Biology and Genetics, Memorial Sloan Kettering Institute and Cancer Center, New York, NY, USA
| | - Ralph Garippa
- Gene Editing and Screening Core Facility, Department of Cancer Biology and Genetics, Memorial Sloan Kettering Institute and Cancer Center, New York, NY, USA
| | - Adam Linley
- Department of Molecular and Clinical Cancer Medicine, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Sigrid S Skånland
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- K.G. Jebsen Centre for B Cell Malignancies, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Anthony R Mato
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Omar Abdel-Wahab
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Justin Taylor
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
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Krug B, Hu B, Chen H, Ptack A, Chen X, Gretarsson KH, Deshmukh S, Kabir N, Andrade AF, Jabbour E, Harutyunyan AS, Lee JJY, Hulswit M, Faury D, Russo C, Xu X, Johnston MJ, Baguette A, Dahl NA, Weil AG, Ellezam B, Dali R, Blanchette M, Wilson K, Garcia BA, Soni RK, Gallo M, Taylor MD, Kleinman CL, Majewski J, Jabado N, Lu C. H3K27me3 spreading organizes canonical PRC1 chromatin architecture to regulate developmental programs. bioRxiv 2023:2023.11.28.567931. [PMID: 38116029 PMCID: PMC10729739 DOI: 10.1101/2023.11.28.567931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Polycomb Repressive Complex 2 (PRC2)-mediated histone H3K27 tri-methylation (H3K27me3) recruits canonical PRC1 (cPRC1) to maintain heterochromatin. In early development, polycomb-regulated genes are connected through long-range 3D interactions which resolve upon differentiation. Here, we report that polycomb looping is controlled by H3K27me3 spreading and regulates target gene silencing and cell fate specification. Using glioma-derived H3 Lys-27-Met (H3K27M) mutations as tools to restrict H3K27me3 deposition, we show that H3K27me3 confinement concentrates the chromatin pool of cPRC1, resulting in heightened 3D interactions mirroring chromatin architecture of pluripotency, and stringent gene repression that maintains cells in progenitor states to facilitate tumor development. Conversely, H3K27me3 spread in pluripotent stem cells, following neural differentiation or loss of the H3K36 methyltransferase NSD1, dilutes cPRC1 concentration and dissolves polycomb loops. These results identify the regulatory principles and disease implications of polycomb looping and nominate histone modification-guided distribution of reader complexes as an important mechanism for nuclear compartment organization. Highlights The confinement of H3K27me3 at PRC2 nucleation sites without its spreading correlates with increased 3D chromatin interactions.The H3K27M oncohistone concentrates canonical PRC1 that anchors chromatin loop interactions in gliomas, silencing developmental programs.Stem and progenitor cells require factors promoting H3K27me3 confinement, including H3K36me2, to maintain cPRC1 loop architecture.The cPRC1-H3K27me3 interaction is a targetable driver of aberrant self-renewal in tumor cells.
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7
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Dridi H, Yehya M, Barsotti R, Liu Y, Reiken S, Azria L, Yuan Q, Bahlouli L, Soni RK, Marks AR, Lacampagne A, Matecki S. Aberrant mitochondrial dynamics contributes to diaphragmatic weakness induced by mechanical ventilation. PNAS Nexus 2023; 2:pgad336. [PMID: 37954156 PMCID: PMC10635656 DOI: 10.1093/pnasnexus/pgad336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 10/04/2023] [Indexed: 11/14/2023]
Abstract
In critical care patients, the ""temporary inactivity of the diaphragm caused by mechanical ventilation (MV) triggers a series of events leading to diaphragmatic dysfunction and atrophy, commonly known as ventilator-induced diaphragm dysfunction (VIDD). While mitochondrial dysfunction related to oxidative stress is recognized as a crucial factor in VIDD, the exact molecular mechanism remains poorly understood. In this study, we observe that 6 h of MV triggers aberrant mitochondrial dynamics, resulting in a reduction in mitochondrial size and interaction, associated with increased expression of dynamin-related protein 1 (DRP1). This effect can be prevented by P110, a molecule that inhibits the recruitment of DRP1 to the mitochondrial membrane. Furthermore, isolated mitochondria from the diaphragms of ventilated patients exhibited increased production of reactive oxygen species (ROS). These mitochondrial changes were associated with the rapid oxidation of type 1 ryanodine receptor (RyR1) and a decrease in the stabilizing subunit calstabin 1. Subsequently, we observed that the sarcoplasmic reticulum (SR) in the ventilated diaphragms showed increased calcium leakage and reduced contractile function. Importantly, the mitochondrial fission inhibitor P110 effectively prevented all of these alterations. Taken together, the results of our study illustrate that MV leads, in the diaphragm, to both mitochondrial fragmentation and dysfunction, linked to the up-/down-regulation of 320 proteins, as assessed through global comprehensive quantitative proteomics analysis, primarily associated with mitochondrial function. These outcomes underscore the significance of developing compounds aimed at modulating the balance between mitochondrial fission and fusion as potential interventions to mitigate VIDD in human patients.
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Affiliation(s)
- Haikel Dridi
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, NewYork, NY 10032, USA
- Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, NewYork, NY 10032, USA
| | - Marc Yehya
- PhyMedExp, INSERM, CNRS, University of Montpellier, Montpellier 34000, France
| | - Robert Barsotti
- Department of Biomedical Sciences, Philadelphia College of Osteopathic Medicine, Philadelphia, PA 19131, USA
| | - Yang Liu
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, NewYork, NY 10032, USA
- Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, NewYork, NY 10032, USA
| | - Steven Reiken
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, NewYork, NY 10032, USA
- Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, NewYork, NY 10032, USA
| | - Lan Azria
- PhyMedExp, INSERM, CNRS, University of Montpellier, Montpellier 34000, France
| | - Qi Yuan
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, NewYork, NY 10032, USA
- Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, NewYork, NY 10032, USA
| | - Laith Bahlouli
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, NewYork, NY 10032, USA
- Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, NewYork, NY 10032, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, NewYork, NY 10032, USA
| | - Andrew R Marks
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, NewYork, NY 10032, USA
- Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, NewYork, NY 10032, USA
| | - Alain Lacampagne
- PhyMedExp, INSERM, CNRS, University of Montpellier, Montpellier 34000, France
| | - Stefan Matecki
- PhyMedExp, INSERM, CNRS, University of Montpellier, Montpellier 34000, France
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8
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Singh J, Soni RK, Nguyen DD, Kumar Gupta V, Nguyen-Tri P. Enhanced photocatalytic and SERS performance of Ag nanoparticles functionalized MoS 2 nanoflakes. Chemosphere 2023; 339:139735. [PMID: 37544527 DOI: 10.1016/j.chemosphere.2023.139735] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
We report the preparation of Ag nanoparticles functionalized MoS2 nanoflakes by using the chemical reduction method followed by the hydrothermal method. Field emission scanning electron microscopy and elemental mapping reveals the uniform functionalization of Ag nanoparticles with MoS2 nanoflakes. High density of Ag plasmonic nanoparticles onto MoS2 nanoflakes demonstrates tremendously improved charge separation behavior in Ag-MoS2 nanohybrids. Photodecomposition capability of plasmonic Ag-MoS2 nanohybrids was explored by the decomposition of industrial pollutant molecules, showing a direct correlation between the Ag content over the MoS2 surface with their photodecomposition ability. The SERS-based detection profiles of the plasmonic were investigated by the ultra-low detection of MB molecules. The Ag-MoS2 nanohybrids SERS substrate manifests the detection of MB molecules solution up to a concentration of 10-9 M with an enhancement factor of 107. In the current study, we proposed and elucidated the probable efficient charge transfer mechanism for improved photocatalytic behavior and SERS-based sensing performance.
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Affiliation(s)
- Jaspal Singh
- Laboratory of Advanced Materials for Energy and Environment, Université Du Québec à Trois-Rivières (UQTR), 3351, Boul. des Forges, C.P. 500, Trois-Rivières, Québec, G9A 5H7, Canada; Laser Spectroscopy Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - R K Soni
- Laser Spectroscopy Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - D Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, Republic of Korea
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Centre, Scotland's Rural College, Parkgate, Barony Campus, DG1 3NE, Dumfries, United Kingdom
| | - Phuong Nguyen-Tri
- Laboratory of Advanced Materials for Energy and Environment, Université Du Québec à Trois-Rivières (UQTR), 3351, Boul. des Forges, C.P. 500, Trois-Rivières, Québec, G9A 5H7, Canada.
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9
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Liu Y, Reiken S, Dridi H, Yuan Q, Mohammad KS, Trivedi T, Miotto MC, Wedderburn-Pugh K, Sittenfeld L, Kerley Y, Meyer JA, Peters JS, Persohn SC, Bedwell AA, Figueiredo LL, Suresh S, She Y, Soni RK, Territo PR, Marks AR, Guise TA. Targeting ryanodine receptor type 2 to mitigate chemotherapy-induced neurocognitive impairments in mice. Sci Transl Med 2023; 15:eadf8977. [PMID: 37756377 DOI: 10.1126/scitranslmed.adf8977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 09/08/2023] [Indexed: 09/29/2023]
Abstract
Chemotherapy-induced cognitive dysfunction (chemobrain) is an important adverse sequela of chemotherapy. Chemobrain has been identified by the National Cancer Institute as a poorly understood problem for which current management or treatment strategies are limited or ineffective. Here, we show that chemotherapy treatment with doxorubicin (DOX) in a breast cancer mouse model induced protein kinase A (PKA) phosphorylation of the neuronal ryanodine receptor/calcium (Ca2+) channel type 2 (RyR2), RyR2 oxidation, RyR2 nitrosylation, RyR2 calstabin2 depletion, and subsequent RyR2 Ca2+ leakiness. Chemotherapy was furthermore associated with abnormalities in brain glucose metabolism and neurocognitive dysfunction in breast cancer mice. RyR2 leakiness and cognitive dysfunction could be ameliorated by treatment with a small molecule Rycal drug (S107). Chemobrain was also found in noncancer mice treated with DOX or methotrexate and 5-fluorouracil and could be prevented by treatment with S107. Genetic ablation of the RyR2 PKA phosphorylation site (RyR2-S2808A) also prevented the development of chemobrain. Chemotherapy increased brain concentrations of the tumor necrosis factor-α and transforming growth factor-β signaling, suggesting that increased inflammatory signaling might contribute to oxidation-driven biochemical remodeling of RyR2. Proteomics and Gene Ontology analysis indicated that the signaling downstream of chemotherapy-induced leaky RyR2 was linked to the dysregulation of synaptic structure-associated proteins that are involved in neurotransmission. Together, our study points to neuronal Ca2+ dyshomeostasis via leaky RyR2 channels as a potential mechanism contributing to chemobrain, warranting further translational studies.
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Affiliation(s)
- Yang Liu
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Steven Reiken
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Haikel Dridi
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Qi Yuan
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Khalid S Mohammad
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Present address: College of Medicine, Alfaisal University, Box 50927, Riyadh 1153, Kingdom of Saudi Arabia
| | - Trupti Trivedi
- Department of Endocrine Neoplasia and Hormonal Disorders, Division of Internal Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marco C Miotto
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Kaylee Wedderburn-Pugh
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Leah Sittenfeld
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Ynez Kerley
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Jill A Meyer
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jonathan S Peters
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Scott C Persohn
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Amanda A Bedwell
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Lucas L Figueiredo
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sukanya Suresh
- Department of Endocrine Neoplasia and Hormonal Disorders, Division of Internal Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yun She
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Paul R Territo
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Andrew R Marks
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Theresa A Guise
- Department of Endocrine Neoplasia and Hormonal Disorders, Division of Internal Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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10
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Soni RK. Protocol for deep proteomic profiling of formalin-fixed paraffin-embedded specimens using a spectral library-free approach. STAR Protoc 2023; 4:102381. [PMID: 37355991 PMCID: PMC10319319 DOI: 10.1016/j.xpro.2023.102381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/20/2023] [Accepted: 05/23/2023] [Indexed: 06/27/2023] Open
Abstract
Formalin-fixed paraffin-embedded (FFPE) samples are valuable archived bio-specimens of individuals and are commonly used in biomedical research. Here, we present a protocol for deep proteomic profiling of FFPE specimens using a spectral library-free approach. We describe steps for FFPE tissue collection, tissue lysis, homogenization, protein lysate cleanup, on-beads digestion, and de-salting. We then detail data acquisition and statistical analysis. This protocol is highly sensitive, reproducible, and applicable for high-throughput proteomic profiling and can be used on various types of specimens.
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Affiliation(s)
- Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University Irving Medical Center, New York, NY, USA; Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA.
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11
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Dridi H, Liu Y, Reiken S, Liu X, Argyrousi EK, Yuan Q, Miotto MC, Sittenfeld L, Meddar A, Soni RK, Arancio O, Lacampagne A, Marks AR. Heart failure-induced cognitive dysfunction is mediated by intracellular Ca 2+ leak through ryanodine receptor type 2. Nat Neurosci 2023; 26:1365-1378. [PMID: 37429912 PMCID: PMC10400432 DOI: 10.1038/s41593-023-01377-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/12/2023] [Indexed: 07/12/2023]
Abstract
Cognitive dysfunction (CD) in heart failure (HF) adversely affects treatment compliance and quality of life. Although ryanodine receptor type 2 (RyR2) has been linked to cardiac muscle dysfunction, its role in CD in HF remains unclear. Here, we show in hippocampal neurons from individuals and mice with HF that the RyR2/intracellular Ca2+ release channels were subjected to post-translational modification (PTM) and were leaky. RyR2 PTM included protein kinase A phosphorylation, oxidation, nitrosylation and depletion of the stabilizing subunit calstabin2. RyR2 PTM was caused by hyper-adrenergic signaling and activation of the transforming growth factor-beta pathway. HF mice treated with a RyR2 stabilizer drug (S107), beta blocker (propranolol) or transforming growth factor-beta inhibitor (SD-208), or genetically engineered mice resistant to RyR2 Ca2+ leak (RyR2-p.Ser2808Ala), were protected against HF-induced CD. Taken together, we propose that HF is a systemic illness driven by intracellular Ca2+ leak that includes cardiogenic dementia.
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Affiliation(s)
- Haikel Dridi
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA.
| | - Yang Liu
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Steven Reiken
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Xiaoping Liu
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Elentina K Argyrousi
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
| | - Qi Yuan
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Marco C Miotto
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | | | | | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, New York, NY, USA
| | - Ottavio Arancio
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
- Department of Medicine, Columbia University, New York, NY, USA
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Alain Lacampagne
- PHYMEDEXP, University of Montpellier, CNRS, INSERM, CHU Montpellier, Montpellier, France
- LIA1185 CNRS, Montpellier, France
| | - Andrew R Marks
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular Cardiology, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA.
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12
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Ho P, Melms JC, Rogava M, Frangieh CJ, Poźniak J, Shah SB, Walsh Z, Kyrysyuk O, Amin AD, Caprio L, Fullerton BT, Soni RK, Ager CR, Biermann J, Wang Y, Khosravi-Maharlooei M, Zanetti G, Mu M, Fatima H, Moore EK, Vasan N, Bakhoum SF, Reiner SL, Bernatchez C, Sykes M, Mace EM, Wucherpfennig KW, Schadendorf D, Bechter O, Shah P, Schwartz GK, Marine JC, Izar B. The CD58-CD2 axis is co-regulated with PD-L1 via CMTM6 and shapes anti-tumor immunity. Cancer Cell 2023; 41:1207-1221.e12. [PMID: 37327789 PMCID: PMC10524902 DOI: 10.1016/j.ccell.2023.05.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/10/2023] [Accepted: 05/22/2023] [Indexed: 06/18/2023]
Abstract
The cell-autonomous balance of immune-inhibitory and -stimulatory signals is a critical process in cancer immune evasion. Using patient-derived co-cultures, humanized mouse models, and single-cell RNA-sequencing of patient melanomas biopsied before and on immune checkpoint blockade, we find that intact cancer cell-intrinsic expression of CD58 and ligation to CD2 is required for anti-tumor immunity and is predictive of treatment response. Defects in this axis promote immune evasion through diminished T cell activation, impaired intratumoral T cell infiltration and proliferation, and concurrently increased PD-L1 protein stabilization. Through CRISPR-Cas9 and proteomics screens, we identify and validate CMTM6 as critical for CD58 stability and upregulation of PD-L1 upon CD58 loss. Competition between CD58 and PD-L1 for CMTM6 binding determines their rate of endosomal recycling over lysosomal degradation. Overall, we describe an underappreciated yet critical axis of cancer immunity and provide a molecular basis for how cancer cells balance immune inhibitory and stimulatory cues.
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Affiliation(s)
- Patricia Ho
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Johannes C Melms
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Meri Rogava
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Chris J Frangieh
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Klarman Cell Observatory, the Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Joanna Poźniak
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, 3000 Leuven, Belgium; Department of Oncology, KU Leuven, 3000 Leuven, Belgium
| | - Shivem B Shah
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Zachary Walsh
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Oleksandr Kyrysyuk
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Amit Dipak Amin
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Lindsay Caprio
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Benjamin T Fullerton
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University, New York, NY 10032, USA
| | - Casey R Ager
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Jana Biermann
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA; Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY 10032, USA
| | - Yiping Wang
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA; Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY 10032, USA
| | - Mohsen Khosravi-Maharlooei
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA; Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Giorgia Zanetti
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Michael Mu
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Hijab Fatima
- Department of Pediatrics, Columbia University, New York, NY 10032, USA
| | - Emily K Moore
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA; Department of Medicine, Division of Rheumatology, Columbia University, New York, NY 10032, USA
| | - Neil Vasan
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Samuel F Bakhoum
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Steven L Reiner
- Department of Pediatrics, Columbia University, New York, NY 10032, USA; Department of Microbiology and Immunology, Columbia University, New York, NY 10032, USA
| | - Chantale Bernatchez
- Department of Medical Oncology, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Megan Sykes
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA; Department of Microbiology and Immunology, Columbia University, New York, NY 10032, USA; Department of Surgery, Columbia University, New York, NY 10032, USA
| | - Emily M Mace
- Department of Pediatrics, Columbia University, New York, NY 10032, USA
| | - Kai W Wucherpfennig
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Dirk Schadendorf
- Department of Dermatology, University Hospital Essen and German Cancer Consortium, Partner Site, 45147 Essen, Germany
| | | | - Parin Shah
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA
| | - Gary K Schwartz
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Jean-Christophe Marine
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, 3000 Leuven, Belgium; Department of Oncology, KU Leuven, 3000 Leuven, Belgium
| | - Benjamin Izar
- Department of Medicine, Division of Hematology and Oncology, Columbia University, New York, NY 10032, USA; Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY 10032, USA; Program for Mathematical Genomics, Department of Systems Biology, Columbia University, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA.
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13
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Chen J, Soni RK, Xu Y, Simoes S, Liang FX, DeFreitas L, Hwang R, Montesinos J, Lee JH, Area-Gomez E, Nandakumar R, Vardarajan B, Marquer C. Juvenile CLN3 disease is a lysosomal cholesterol storage disorder: similarities with Niemann-Pick type C disease. EBioMedicine 2023; 92:104628. [PMID: 37245481 PMCID: PMC10227369 DOI: 10.1016/j.ebiom.2023.104628] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/30/2023] [Accepted: 05/10/2023] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND The most common form of neuronal ceroid lipofuscinosis (NCL) is juvenile CLN3 disease (JNCL), a currently incurable neurodegenerative disorder caused by mutations in the CLN3 gene. Based on our previous work and on the premise that CLN3 affects the trafficking of the cation-independent mannose-6 phosphate receptor and its ligand NPC2, we hypothesised that dysfunction of CLN3 leads to the aberrant accumulation of cholesterol in the late endosomes/lysosomes (LE/Lys) of JNCL patients' brains. METHODS An immunopurification strategy was used to isolate intact LE/Lys from frozen autopsy brain samples. LE/Lys isolated from samples of JNCL patients were compared with age-matched unaffected controls and Niemann-Pick Type C (NPC) disease patients. Indeed, mutations in NPC1 or NPC2 result in the accumulation of cholesterol in LE/Lys of NPC disease samples, thus providing a positive control. The lipid and protein content of LE/Lys was then analysed using lipidomics and proteomics, respectively. FINDINGS Lipid and protein profiles of LE/Lys isolated from JNCL patients were profoundly altered compared to controls. Importantly, cholesterol accumulated in LE/Lys of JNCL samples to a comparable extent than in NPC samples. Lipid profiles of LE/Lys were similar in JNCL and NPC patients, except for levels of bis(monoacylglycero)phosphate (BMP). Protein profiles detected in LE/Lys of JNCL and NPC patients appeared identical, except for levels of NPC1. INTERPRETATION Our results support that JNCL is a lysosomal cholesterol storage disorder. Our findings also support that JNCL and NPC disease share pathogenic pathways leading to aberrant lysosomal accumulation of lipids and proteins, and thus suggest that the treatments available for NPC disease may be beneficial to JNCL patients. This work opens new avenues for further mechanistic studies in model systems of JNCL and possible therapeutic interventions for this disorder. FUNDING San Francisco Foundation.
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Affiliation(s)
- Jacinda Chen
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, New York City, NY 10032, USA
| | - Yimeng Xu
- Biomarkers Core Laboratory, Irving Institute for Clinical and Translational Research, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Sabrina Simoes
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA; Department of Neurology, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Feng-Xia Liang
- Microscopy Core Laboratory of Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York City, NY 10016, USA
| | - Laura DeFreitas
- Biomarkers Core Laboratory, Irving Institute for Clinical and Translational Research, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Robert Hwang
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Jorge Montesinos
- Department of Neurology, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Joseph H Lee
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA; Department of Neurology, Columbia University Irving Medical Center, New York City, NY 10032, USA; G. H. Sergievsky Center, Columbia University Irving Medical Center, New York City, NY 10032, USA; Department of Epidemiology, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Estela Area-Gomez
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA; Department of Neurology, Columbia University Irving Medical Center, New York City, NY 10032, USA; Institute of Human Nutrition, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Renu Nandakumar
- Biomarkers Core Laboratory, Irving Institute for Clinical and Translational Research, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Badri Vardarajan
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA; Department of Neurology, Columbia University Irving Medical Center, New York City, NY 10032, USA; G. H. Sergievsky Center, Columbia University Irving Medical Center, New York City, NY 10032, USA
| | - Catherine Marquer
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York City, NY 10032, USA; Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, NY 10032, USA.
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14
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Wu JY, Yeager K, Tavakol DN, Morsink M, Wang B, Soni RK, Hung CT, Vunjak-Novakovic G. Directed differentiation of human iPSCs into mesenchymal lineages by optogenetic control of TGF-β signaling. Cell Rep 2023; 42:112509. [PMID: 37178118 PMCID: PMC10278972 DOI: 10.1016/j.celrep.2023.112509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 12/28/2022] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
In tissue development and homeostasis, transforming growth factor (TGF)-β signaling is finely coordinated by latent forms and matrix sequestration. Optogenetics can offer precise and dynamic control of cell signaling. We report the development of an optogenetic human induced pluripotent stem cell system for TGF-β signaling and demonstrate its utility in directing differentiation into the smooth muscle, tenogenic, and chondrogenic lineages. Light-activated TGF-β signaling resulted in expression of differentiation markers at levels close to those in soluble factor-treated cultures, with minimal phototoxicity. In a cartilage-bone model, light-patterned TGF-β gradients allowed the establishment of hyaline-like layer of cartilage tissue at the articular surface while attenuating with depth to enable hypertrophic induction at the osteochondral interface. By selectively activating TGF-β signaling in co-cultures of light-responsive and non-responsive cells, undifferentiated and differentiated cells were simultaneously maintained in a single culture with shared medium. This platform can enable patient-specific and spatiotemporally precise studies of cellular decision making.
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Affiliation(s)
- Josephine Y Wu
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Keith Yeager
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | | | - Margaretha Morsink
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Bryan Wang
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Clark T Hung
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA; Department of Medicine, Columbia University, New York, NY 10032, USA.
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15
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Ko A, Hasanain M, Oh YT, D'Angelo F, Sommer D, Frangaj B, Tran S, Bielle F, Pollo B, Paterra R, Mokhtari K, Soni RK, Peyre M, Eoli M, Papi L, Kalamarides M, Sanson M, Iavarone A, Lasorella A. LZTR1 Mutation Mediates Oncogenesis through Stabilization of EGFR and AXL. Cancer Discov 2023; 13:702-723. [PMID: 36445254 DOI: 10.1158/2159-8290.cd-22-0376] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 09/23/2022] [Accepted: 11/21/2022] [Indexed: 12/02/2022]
Abstract
LZTR1 is the substrate-specific adaptor of a CUL3-dependent ubiquitin ligase frequently mutated in sporadic and syndromic cancer. We combined biochemical and genetic studies to identify LZTR1 substrates and interrogated their tumor-driving function in the context of LZTR1 loss-of-function mutations. Unbiased screens converged on EGFR and AXL receptor tyrosine kinases as LZTR1 interactors targeted for ubiquitin-dependent degradation in the lysosome. Pathogenic cancer-associated mutations of LZTR1 failed to promote EGFR and AXL degradation, resulting in dysregulated growth factor signaling. Conditional inactivation of Lztr1 and Cdkn2a in the mouse nervous system caused tumors in the peripheral nervous system including schwannoma-like tumors, thus recapitulating aspects of schwannomatosis, the prototype tumor predisposition syndrome sustained by LZTR1 germline mutations. Lztr1- and Cdkn2a-deleted tumors aberrantly accumulated EGFR and AXL and exhibited specific vulnerability to EGFR and AXL coinhibition. These findings explain tumorigenesis by LZTR1 inactivation and offer therapeutic opportunities to patients with LZTR1-mutant cancer. SIGNIFICANCE EGFR and AXL are substrates of LZTR1-CUL3 ubiquitin ligase. The frequent somatic and germline mutations of LZTR1 in human cancer cause EGFR and AXL accumulation and deregulated signaling. LZTR1-mutant tumors show vulnerability to concurrent inhibition of EGFR and AXL, thus providing precision targeting to patients affected by LZTR1-mutant cancer. This article is highlighted in the In This Issue feature, p. 517.
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Affiliation(s)
- Aram Ko
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Mohammad Hasanain
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Young Taek Oh
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Fulvio D'Angelo
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Danika Sommer
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Brulinda Frangaj
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Suzanne Tran
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Laboratory of Neuropathology, Paris, France
| | - Franck Bielle
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Laboratory of Neuropathology, Paris, France
| | - Bianca Pollo
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Rosina Paterra
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Karima Mokhtari
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Neurosurgery Service, Paris, France
| | - Rajesh Kumar Soni
- Proteomics Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
| | - Matthieu Peyre
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Neurosurgery Service, Paris, France
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Service of Neurology 2-Mazarin, Equipe lLNCC, Paris, France
| | - Marica Eoli
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Laura Papi
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio," University of Florence, Florence, Italy
| | - Michel Kalamarides
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Neurosurgery Service, Paris, France
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Service of Neurology 2-Mazarin, Equipe lLNCC, Paris, France
| | - Marc Sanson
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Service of Neurology 2-Mazarin, Equipe lLNCC, Paris, France
- Onconeurotek Tumor Bank, Brain and Spinal Cord Institute ICM, 75013 Paris, France
| | - Antonio Iavarone
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
- Department of Neurology, Columbia University Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
| | - Anna Lasorella
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
- Department of Pediatrics, Columbia University Medical Center, New York, New York
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16
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Liu H, Forouhar F, Lin AJ, Wang Q, Polychronidou V, Soni RK, Xia X, Stockwell BR. Small-molecule allosteric inhibitors of GPX4. Cell Chem Biol 2022; 29:1680-1693.e9. [PMID: 36423641 PMCID: PMC9772252 DOI: 10.1016/j.chembiol.2022.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 02/27/2022] [Accepted: 11/02/2022] [Indexed: 11/24/2022]
Abstract
Encouraged by the dependence of drug-resistant, metastatic cancers on GPX4, we examined biophysical mechanisms of GPX4 inhibition, which revealed an unexpected allosteric site. We found that this site was involved in native regeneration of GPX4 under low glutathione conditions. Covalent binding of inhibitors to this allosteric site caused a conformational change, inhibition of activity, and subsequent cellular GPX4 protein degradation. To verify this site in an unbiased manner, we screened a library of compounds and identified and validated that an additional compound can covalently bind in this allosteric site, inhibiting and degrading GPX4. We determined co-crystal structures of six different inhibitors bound in this site. We have thus identified an allosteric mechanism for small molecules targeting aggressive cancers dependent on GPX4.
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Affiliation(s)
- Hengrui Liu
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Farhad Forouhar
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Annie J Lin
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Qian Wang
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | | | - Rajesh Kumar Soni
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Xin Xia
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Brent R Stockwell
- Department of Chemistry, Columbia University, New York, NY 10027, USA; Department of Biological Sciences, Columbia University, New York, NY 10027, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA; Irving Institute for Cancer Dynamics, Columbia University, New York, NY 10027, USA.
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17
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Pinezich MR, Tamargo MA, Fleischer S, Reimer JA, Hudock MR, Hozain AE, Kaslow SR, Tipograf Y, Soni RK, Gavaudan OP, Guenthart BA, Marboe CC, Bacchetta M, O'Neill JD, Dorrello NV, Vunjak-Novakovic G. Pathological remodeling of distal lung matrix in end-stage cystic fibrosis patients. J Cyst Fibros 2022; 21:1027-1035. [PMID: 35525782 PMCID: PMC10050894 DOI: 10.1016/j.jcf.2022.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/14/2022] [Accepted: 04/20/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Manifestations of cystic fibrosis, although well-characterized in the proximal airways, are understudied in the distal lung. Characterization of the cystic fibrosis lung 'matrisome' (matrix proteome) has not been previously described, and could help identify biomarkers and inform therapeutic strategies. METHODS We performed liquid chromatography-mass spectrometry, gene ontology analysis, and multi-modal imaging, including histology, immunofluorescence, and electron microscopy for a comprehensive evaluation of distal human lung extracellular matrix (matrix) structure and composition in end-stage cystic fibrosis. RESULTS Quantitative proteomic profiling identified sixty-eight (68) matrix constituents with significantly altered expression in end-stage cystic fibrosis. Over 90% of significantly different matrix peptides detected, including structural and basement membrane proteins, were expressed at lower levels in cystic fibrosis. However, the total abundance of matrix in cystic fibrosis lungs was not significantly different from control lungs, suggesting that cystic fibrosis leads to loss of diversity among lung matrix proteins rather than an absolute loss of matrix. Visualization of distal lung matrix via immunofluorescence and electron microscopy revealed pathological remodeling of distal lung tissue architecture and loss of alveolar basement membrane, consistent with significantly altered pathways identified by gene ontology analysis. CONCLUSIONS Dysregulation of matrix organization and aberrant wound healing pathways are associated with loss of matrix protein diversity and obliteration of distal lung tissue structure in end-stage cystic fibrosis. While many therapeutics aim to functionally restore defective cystic fibrosis transmembrane conductance regulator (CFTR), drugs that target dysregulated matrix pathways may serve as adjunct interventions to support lung recovery.
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Affiliation(s)
- Meghan R Pinezich
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Manuel A Tamargo
- Department of Biomedical Engineering, Columbia University, New York, NY, USA; Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Sharon Fleischer
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Jonathan A Reimer
- Department of Biomedical Engineering, Columbia University, New York, NY, USA; Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Maria R Hudock
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Ahmed E Hozain
- Department of Biomedical Engineering, Columbia University, New York, NY, USA; Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Sarah R Kaslow
- Department of Biomedical Engineering, Columbia University, New York, NY, USA; Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Yuliya Tipograf
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, USA
| | - Olimpia P Gavaudan
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Brandon A Guenthart
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Charles C Marboe
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Matthew Bacchetta
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - John D O'Neill
- Department of Cell Biology, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - N Valerio Dorrello
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, NY, USA; Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA; College of Dental Medicine, Columbia University Irving Medical Center, New York, NY, USA.
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18
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Bal E, Kumar R, Hadigol M, Holmes AB, Hilton LK, Loh JW, Dreval K, Wong JCH, Vlasevska S, Corinaldesi C, Soni RK, Basso K, Morin RD, Khiabanian H, Pasqualucci L, Dalla-Favera R. Author Correction: Super-enhancer hypermutation alters oncogene expression in B cell lymphoma. Nature 2022; 611:E2. [PMID: 36253470 DOI: 10.1038/s41586-022-05285-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Elodie Bal
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Rahul Kumar
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Mohammad Hadigol
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
| | - Antony B Holmes
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Laura K Hilton
- Centre for Lymphoid Cancer, BC Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Jui Wan Loh
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
| | - Kostiantyn Dreval
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jasper C H Wong
- Centre for Lymphoid Cancer, BC Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Sofija Vlasevska
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | | | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Katia Basso
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Ryan D Morin
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada.,Genome Sciences Center, BC Cancer Research Institute, Vancouver, British Columbia, Canada
| | - Hossein Khiabanian
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA.,Department of Pathology and Laboratory Medicine, Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Laura Pasqualucci
- Institute for Cancer Genetics, Columbia University, New York, NY, USA. .,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA. .,Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.
| | - Riccardo Dalla-Favera
- Institute for Cancer Genetics, Columbia University, New York, NY, USA. .,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA. .,Department of Pathology and Cell Biology, Columbia University, New York, NY, USA. .,Department of Genetics & Development, Columbia University, New York, NY, USA. .,Department of Microbiology & Immunology, Columbia University, New York, NY, USA.
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19
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Soni RK, Dimapanat L, Katari MS, Rai AJ. An Optimized Procedure for Proteomic Analysis of Extracellular Vesicles Using In-Stage Tip Digestion and DIA LC-MS/MS: Application to Liquid Biopsy in Cancer. Methods Mol Biol 2022; 2546:401-409. [PMID: 36127607 DOI: 10.1007/978-1-0716-2565-1_35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Utilizing biofluids to identify cancer biomarkers has received considerable attention in the past decade. In this regard, serum and urine are convenient biofluids to noninvasively recapitulate information usually indicated by traditional tissue biopsies. In particular, we are interested in exploring the extracellular vesicle (ECV)-containing compartment of these fluids as a targeted source for cancer biomarker discovery. ECVs are membrane-enclosed particles, comprising of various fractions including exosomes, microvesicles, and apoptotic bodies. In both physiological and pathological states such as cancer, ECVs carry a rich load of molecular and protein cargoes, which aid in mediating intercellular communication between cells from various tissue types. Here we successfully enriched ECVs using a simple, low-cost, optimized method that we have developed; it is generalizable for the analysis of ECVs from multiple sample types. Such procedures are necessary as ECVs are nanoparticles that contain a treasure trove of large numbers of biomarkers each present at very low levels. Sample processing procedures can enrich for these vesicles and allow for the enhanced detection of proteins in downstream applications such as comprehensive proteomics methods using data-independent acquisition (DIA) and LC-MS/MS.
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Affiliation(s)
| | | | | | - Alex J Rai
- Herbert Irving Comprehensive Cancer Center, New York, NY, USA. .,Department of Pathology & Cell Biology, New York, NY, USA. .,Special Chemistry Laboratories, New York, NY, USA.
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20
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Abstract
Plasma and serum are rich sources of proteins that are commonly used for clinical proteome profiling and biomarkers discovery. However, high-throughput plasma proteome profiling and quantitative analysis using mass spectrometry are challenging because of the large dynamic range of protein abundance and complexity. To overcome these challenges, we developed a convenient high-throughput workflow of depleted plasma using the 4D-Proteomics feature of the Bruker timsTOF Pro mass spectrometer with data-dependent (PASEF) and data-independent acquisition (diaPASEF) method that can potentially be used in a clinical proteome profiling and biomarker discoveries. This workflow is robust, optimal for high throughput, high proteome depth, and is reproducible. In our sample preparation steps, we used immuno-depletion steps to remove high-abundance plasma proteins, and without any further cleanup steps, we can use depleted plasma samples directly for enzymatic digestion. Immuno-depletion steps and 4D-Proteomics features of timsTOF Pro increase the plasma proteome depth, and accuracy with the identification of >800 protein groups.
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Affiliation(s)
- Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, New York, NY, USA.
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21
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Giangreco NP, Lebreton G, Restaino S, Farr M, Zorn E, Colombo PC, Patel J, Soni RK, Leprince P, Kobashigawa J, Tatonetti NP, Fine BM. Alterations in the kallikrein-kinin system predict death after heart transplant. Sci Rep 2022; 12:14167. [PMID: 35986069 PMCID: PMC9391369 DOI: 10.1038/s41598-022-18573-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 08/16/2022] [Indexed: 11/09/2022] Open
Abstract
Heart transplantation remains the definitive treatment for end stage heart failure. Because availability is limited, risk stratification of candidates is crucial for optimizing both organ allocations and transplant outcomes. Here we utilize proteomics prior to transplant to identify new biomarkers that predict post-transplant survival in a multi-institutional cohort. Microvesicles were isolated from serum samples and underwent proteomic analysis using mass spectrometry. Monte Carlo cross-validation (MCCV) was used to predict survival after transplant incorporating select recipient pre-transplant clinical characteristics and serum microvesicle proteomic data. We identified six protein markers with prediction performance above AUROC of 0.6, including Prothrombin (F2), anti-plasmin (SERPINF2), Factor IX, carboxypeptidase 2 (CPB2), HGF activator (HGFAC) and low molecular weight kininogen (LK). No clinical characteristics demonstrated an AUROC > 0.6. Putative biological functions and pathways were assessed using gene set enrichment analysis (GSEA). Differential expression analysis identified enriched pathways prior to transplant that were associated with post-transplant survival including activation of platelets and the coagulation pathway prior to transplant. Specifically, upregulation of coagulation cascade components of the kallikrein-kinin system (KKS) and downregulation of kininogen prior to transplant were associated with survival after transplant. Further prospective studies are warranted to determine if alterations in the KKS contributes to overall post-transplant survival.
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Affiliation(s)
- Nicholas P Giangreco
- Departments of Systems Biology, Biomedical Informatics, and Medicine, Columbia University, New York, NY, USA
| | - Guillaume Lebreton
- Chirurgie Thoracique et Cardiovasculaire, Pitíe-Salpetriere University Hospital, Paris, France
| | - Susan Restaino
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY, USA
| | - Maryjane Farr
- Department of Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Emmanuel Zorn
- Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Paolo C Colombo
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY, USA
| | - Jignesh Patel
- Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, USA
| | - Pascal Leprince
- Chirurgie Thoracique et Cardiovasculaire, Pitíe-Salpetriere University Hospital, Paris, France
| | - Jon Kobashigawa
- Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Nicholas P Tatonetti
- Departments of Systems Biology, Biomedical Informatics, and Medicine, Columbia University, New York, NY, USA
- Institute for Genomic Medicine, Columbia University, New York, NY, USA
| | - Barry M Fine
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY, USA.
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22
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Zhang X, Wang BZ, Kim M, Nash TR, Liu B, Rao J, Lock R, Tamargo M, Soni RK, Belov J, Li E, Vunjak-Novakovic G, Fine B. STK25 inhibits PKA signaling by phosphorylating PRKAR1A. Cell Rep 2022; 40:111203. [PMID: 35977512 PMCID: PMC9446420 DOI: 10.1016/j.celrep.2022.111203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/10/2022] [Accepted: 07/21/2022] [Indexed: 11/26/2022] Open
Abstract
In the heart, protein kinase A (PKA) is critical for activating calcium handling and sarcomeric proteins in response to beta-adrenergic stimulation leading to increased myocardial contractility and performance. The catalytic activity of PKA is tightly regulated by regulatory subunits that inhibit the catalytic subunit until released by cAMP binding. Phosphorylation of type II regulatory subunits promotes PKA activation; however, the role of phosphorylation in type I regulatory subunits remain uncertain. Here, we utilize human induced pluripotent stem cell cardiomyocytes (iPSC-CMs) to identify STK25 as a kinase of the type Iα regulatory subunit PRKAR1A. Phosphorylation of PRKAR1A leads to inhibition of PKA kinase activity and increased binding to the catalytic subunit in the presence of cAMP. Stk25 knockout in mice diminishes Prkar1a phosphorylation, increases Pka activity, and augments contractile response to beta-adrenergic stimulation. Together, these data support STK25 as a negative regulator of PKA signaling through phosphorylation of PRKAR1A.
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Affiliation(s)
- Xiaokan Zhang
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Bryan Z Wang
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Michael Kim
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Trevor R Nash
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Bohao Liu
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Jenny Rao
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Roberta Lock
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Manuel Tamargo
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, USA
| | - John Belov
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Eric Li
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Gordana Vunjak-Novakovic
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Barry Fine
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA.
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23
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Bal E, Kumar R, Hadigol M, Holmes AB, Hilton LK, Loh JW, Dreval K, Wong JCH, Vlasevska S, Corinaldesi C, Soni RK, Basso K, Morin RD, Khiabanian H, Pasqualucci L, Dalla-Favera R. Super-enhancer hypermutation alters oncogene expression in B cell lymphoma. Nature 2022; 607:808-815. [PMID: 35794478 PMCID: PMC9583699 DOI: 10.1038/s41586-022-04906-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 05/25/2022] [Indexed: 12/16/2022]
Abstract
Diffuse large B cell lymphoma (DLBCL) is the most common B cell non-Hodgkin lymphoma and remains incurable in around 40% of patients. Efforts to sequence the coding genome identified several genes and pathways that are altered in this disease, including potential therapeutic targets1-5. However, the non-coding genome of DLBCL remains largely unexplored. Here we show that active super-enhancers are highly and specifically hypermutated in 92% of samples from individuals with DLBCL, display signatures of activation-induced cytidine deaminase activity, and are linked to genes that encode B cell developmental regulators and oncogenes. As evidence of oncogenic relevance, we show that the hypermutated super-enhancers linked to the BCL6, BCL2 and CXCR4 proto-oncogenes prevent the binding and transcriptional downregulation of the corresponding target gene by transcriptional repressors, including BLIMP1 (targeting BCL6) and the steroid receptor NR3C1 (targeting BCL2 and CXCR4). Genetic correction of selected mutations restored repressor DNA binding, downregulated target gene expression and led to the counter-selection of cells containing corrected alleles, indicating an oncogenic dependency on the super-enhancer mutations. This pervasive super-enhancer mutational mechanism reveals a major set of genetic lesions deregulating gene expression, which expands the involvement of known oncogenes in DLBCL pathogenesis and identifies new deregulated gene targets of therapeutic relevance.
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Affiliation(s)
- Elodie Bal
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Rahul Kumar
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Mohammad Hadigol
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
| | - Antony B Holmes
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Laura K Hilton
- Centre for Lymphoid Cancer, BC Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Jui Wan Loh
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
| | - Kostiantyn Dreval
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jasper C H Wong
- Centre for Lymphoid Cancer, BC Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Sofija Vlasevska
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | | | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Katia Basso
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Ryan D Morin
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
- Genome Sciences Center, BC Cancer Research Institute, Vancouver, British Columbia, Canada
| | - Hossein Khiabanian
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
- Department of Pathology and Laboratory Medicine, Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Laura Pasqualucci
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.
| | - Riccardo Dalla-Favera
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.
- Department of Genetics & Development, Columbia University, New York, NY, USA.
- Department of Microbiology & Immunology, Columbia University, New York, NY, USA.
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24
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Giangreco NP, Lebreton G, Restaino S, Jane Farr M, Zorn E, Colombo PC, Patel J, Levine R, Truby L, Soni RK, Leprince P, Kobashigawa J, Tatonetti NP, Fine BM. Plasma kallikrein predicts primary graft dysfunction after heart transplant. J Heart Lung Transplant 2021; 40:1199-1211. [PMID: 34330603 DOI: 10.1016/j.healun.2021.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/21/2021] [Accepted: 07/01/2021] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Primary graft dysfunction (PGD) is the leading cause of early mortality after heart transplant. Pre-transplant predictors of PGD remain elusive and its etiology remains unclear. METHODS Microvesicles were isolated from 88 pre-transplant serum samples and underwent proteomic evaluation using TMT mass spectrometry. Monte Carlo cross validation (MCCV) was used to predict the occurrence of severe PGD after transplant using recipient pre-transplant clinical characteristics and serum microvesicle proteomic data. Putative biological functions and pathways were assessed using gene set enrichment analysis (GSEA) within the MCCV prediction methodology. RESULTS Using our MCCV prediction methodology, decreased levels of plasma kallikrein (KLKB1), a critical regulator of the kinin-kallikrein system, was the most predictive factor identified for PGD (AUROC 0.6444 [0.6293, 0.6655]; odds 0.1959 [0.0592, 0.3663]. Furthermore, a predictive panel combining KLKB1 with inotrope therapy achieved peak performance (AUROC 0.7181 [0.7020, 0.7372]) across and within (AUROCs of 0.66-0.78) each cohort. A classifier utilizing KLKB1 and inotrope therapy outperforms existing composite scores by more than 50 percent. The diagnostic utility of the classifier was validated on 65 consecutive transplant patients, resulting in an AUROC of 0.71 and a negative predictive value of 0.92-0.96. Differential expression analysis revealed a enrichment in inflammatory and immune pathways prior to PGD. CONCLUSIONS Pre-transplant level of KLKB1 is a robust predictor of post-transplant PGD. The combination with pre-transplant inotrope therapy enhances the prediction of PGD compared to pre-transplant KLKB1 levels alone and the resulting classifier equation validates within a prospective validation cohort. Inflammation and immune pathway enrichment characterize the pre-transplant proteomic signature predictive of PGD.
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Affiliation(s)
- Nicholas P Giangreco
- Departments of Systems Biology, Biomedical Informatics, and Medicine, Columbia University, New York, New York
| | - Guillaume Lebreton
- Chirurgie Thoracique et Cardiovasculaire, Pitiíe-Salpetriere University Hospital, Paris, France
| | - Susan Restaino
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, New York
| | - Mary Jane Farr
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, New York
| | - Emmanuel Zorn
- Center for Translational Immunology, Columbia University Irving Medical Center, New York, New York
| | - Paolo C Colombo
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, New York
| | - Jignesh Patel
- Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Ryan Levine
- Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Lauren Truby
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, New York
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Pascal Leprince
- Chirurgie Thoracique et Cardiovasculaire, Pitiíe-Salpetriere University Hospital, Paris, France
| | - Jon Kobashigawa
- Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Nicholas P Tatonetti
- Departments of Systems Biology, Biomedical Informatics, and Medicine, Columbia University, New York, New York; Institute for Genomic Medicine, Columbia University, New York, New York
| | - Barry M Fine
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, New York.
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25
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Rosenberg AM, Rausser S, Ren J, Mosharov EV, Sturm G, Ogden RT, Patel P, Kumar Soni R, Lacefield C, Tobin DJ, Paus R, Picard M. Quantitative mapping of human hair greying and reversal in relation to life stress. eLife 2021; 10:67437. [PMID: 34155974 PMCID: PMC8219384 DOI: 10.7554/elife.67437] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Hair greying is a hallmark of aging generally believed to be irreversible and linked to psychological stress. Methods: Here, we develop an approach to profile hair pigmentation patterns (HPPs) along individual human hair shafts, producing quantifiable physical timescales of rapid greying transitions. Results: Using this method, we show white/grey hairs that naturally regain pigmentation across sex, ethnicities, ages, and body regions, thereby quantitatively defining the reversibility of greying in humans. Molecularly, grey hairs upregulate proteins related to energy metabolism, mitochondria, and antioxidant defenses. Combining HPP profiling and proteomics on single hairs, we also report hair greying and reversal that can occur in parallel with psychological stressors. To generalize these observations, we develop a computational simulation, which suggests a threshold-based mechanism for the temporary reversibility of greying. Conclusions: Overall, this new method to quantitatively map recent life history in HPPs provides an opportunity to longitudinally examine the influence of recent life exposures on human biology. Funding: This work was supported by the Wharton Fund and NIH grants GM119793, MH119336, and AG066828 (MP). Hair greying is a visible sign of aging that affects everyone. The loss of hair color is due to the loss of melanin, a pigment found in the skin, eyes and hair. Research in mice suggests stress may accelerate hair greying, but there is no definitive research on this in humans. This is because there are no research tools to precisely map stress and hair color over time. But, just like tree rings hold information about past decades, and rocks hold information about past centuries, hairs hold information about past months and years. Hair growth is an active process that happens under the skin inside hair follicles. It demands lots of energy, supplied by structures inside cells called mitochondria. While hairs are growing, cells receive chemical and electrical signals from inside the body, including stress hormones. It is possible that these exposures change proteins and other molecules laid down in the growing hair shaft. As the hair grows out of the scalp, it hardens, preserving these molecules into a stable form. This preservation is visible as patterns of pigmentation. Examining single-hairs and matching the patterns to life events could allow researchers to look back in time through a person’s biological history. Rosenberg et al. report a new way to digitize and measure small changes in color along single human hairs. This method revealed that some white hairs naturally regain their color, something that had not been reported in a cohort of healthy individuals before. Aligning the hair pigmentation patterns with recent reports of stress in the hair donors’ lives showed striking associations. When one donor reported an increase in stress, a hair lost its pigment. When the donor reported a reduction in stress, the same hair regained its pigment. Rosenberg et al. mapped hundreds of proteins inside the hairs to show that white hairs contained more proteins linked to mitochondria and energy use. This suggests that metabolism and mitochondria may play a role in hair greying. To explore these observations in more detail Rosenberg et al. developed a mathematical model that simulates the greying of a whole head of hair over a lifetime, an experiment impossible to do with living people. The model suggested that there might be a threshold for temporary greying; if hairs are about to go grey anyway, a stressful event might trigger that change earlier. And when the stressful event ends, if a hair is just above the threshold, then it could revert back to dark. The new method for measuring small changes in hair coloring opens up the possibility of using hair pigmentation patterns like tree rings. This could track the influence of past life events on human biology. In the future, monitoring hair pigmentation patterns could provide a way to trace the effectiveness of treatments aimed at reducing stress or slowing the aging process. Understanding how ‘old’ white hairs regain their ‘young’ pigmented state could also reveal new information about the malleability of human aging more generally.
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Affiliation(s)
- Ayelet M Rosenberg
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, United States
| | - Shannon Rausser
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, United States
| | - Junting Ren
- Department of Biostatistics, Mailman School of Public Health, Columbia University Irving Medical Center, New York, United States
| | - Eugene V Mosharov
- Department of Psychiatry, Division of Molecular Therapeutics, Columbia University Irving Medical Center, New York, United States.,New York State Psychiatric Institute, New York, United States
| | - Gabriel Sturm
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, United States
| | - R Todd Ogden
- Department of Biostatistics, Mailman School of Public Health, Columbia University Irving Medical Center, New York, United States
| | - Purvi Patel
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University Irving Medical Center, New York, United States
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Columbia University Irving Medical Center, New York, United States
| | - Clay Lacefield
- New York State Psychiatric Institute, New York, United States
| | - Desmond J Tobin
- UCD Charles Institute of Dermatology & UCD Conway Institute, School of Medicine, University College Dublin, Dublin, Ireland
| | - Ralf Paus
- Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, United States.,Centre for Dermatology Research, University of Manchester, Manchester, United Kingdom.,Monasterium Laboratory, Münster, Germany
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, United States.,New York State Psychiatric Institute, New York, United States.,Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, United States
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26
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Nooyi SC, Sonaliya KN, Dhingra B, Roy RN, Indumathy P, Soni RK, Kumar N, Chudasama RK, Kumar CS, Singh AK, Mohan VR, Kumar BSN. Descriptive Epidemiology of Unintentional Childhood Injuries in India: An ICMR Taskforce Multisite Study. Indian Pediatr 2021; 58:517-524. [PMID: 34176793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
BACKGROUND Children 0-14 years constitute about 31.4% of Indian population, among whom the magnitude and risk factors of childhood injuries have not been adequately studied. OBJECTIVE To study the prevalence of and assess the factors associated with unintentional injuries among children aged 6 month - 18 years in various regions. METHODOLOGY This multi-centric, cross-sectional, community-based study was conducted at 11 sites across India. States included were Gujarat, Karnataka, Madhya Pradesh, Punjab, Sikkim, Tamil Nadu, Uttarakhand, and West Bengal between March, 2018 and September, 2020. A total of 2341 urban and rural households from each site were selected based on probability proportionate to size. The World Health Organization (WHO) child injury questionnaire adapted to the Indian settings was used after validation. Information on injuries was collected for previous 12 months. Definitions for types (road traffic accidents, falls, burns, poisoning, drowning, animal-related injuries) and severity of injuries was adapted from the WHO study. Information was elicited from parents/primary caregivers. Data were collected electronically, and handled with a management information system. RESULTS In the 25751 households studied, there were 31020 children aged 6 months-18 years. A total of 1452 children (66.1% males) had 1535 unintentional injuries (excluding minor injuries) had occurred in the preceding one year. The overall prevalence of unintentional injuries excluding minor injuries was 4.7% (95% CI: 4.4-4.9). The commonest type of injury was fall-related (842, 54.8%) and the least common was drowning (3, 0.2%). Injuries in the home environment accounted for more than 50% of cases. CONCLUSIONS The findings of the study provide inputs for developing a comprehensive child injury prevention policy in the country. Child safe school with age-appropriate measures, a safe home environment, and road safety measures for children should be a three-pronged approach in minimizing the number and the severity of child injuries both in urban and rural areas.
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Affiliation(s)
| | | | | | | | - P Indumathy
- Vellalar College for Women, Erode, Tamil Nadu
| | - R K Soni
- Dayanand Medical College and Hospital, Ludhiana, Punjab
| | - Nithin Kumar
- Kasturba Medical College, Mangalore (Manipal Academy of Higher Education), Karnataka
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27
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Ahn D, Bhushan G, McConville TH, Annavajhala MK, Soni RK, Wong Fok Lung T, Hofstaedter CE, Shah SS, Chong AM, Castano VG, Ernst RK, Uhlemann AC, Prince A. An acquired acyltransferase promotes Klebsiella pneumoniae ST258 respiratory infection. Cell Rep 2021; 35:109196. [PMID: 34077733 PMCID: PMC8283688 DOI: 10.1016/j.celrep.2021.109196] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/12/2021] [Accepted: 05/10/2021] [Indexed: 12/18/2022] Open
Abstract
Klebsiella pneumoniae ST258 is a human pathogen associated with poor outcomes worldwide. We identify a member of the acyltransferase superfamily 3 (atf3), enriched within the ST258 clade, that provides a major competitive advantage for the proliferation of these organisms in vivo. Comparison of a wild-type ST258 strain (KP35) and a Δatf3 isogenic mutant generated by CRISPR-Cas9 targeting reveals greater NADH:ubiquinone oxidoreductase transcription and ATP generation, fueled by increased glycolysis. The acquisition of atf3 induces changes in the bacterial acetylome, promoting lysine acetylation of multiple proteins involved in central metabolism, specifically Zwf (glucose-6 phosphate dehydrogenase). The atf3-mediated metabolic boost leads to greater consumption of glucose in the host airway and increased bacterial burden in the lung, independent of cytokine levels and immune cell recruitment. Acquisition of this acyltransferase enhances fitness of a K. pneumoniae ST258 isolate and may contribute to the success of this clonal complex as a healthcare-associated pathogen.
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Affiliation(s)
- Danielle Ahn
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA.
| | - Gitanjali Bhushan
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Thomas H McConville
- Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Medini K Annavajhala
- Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Tania Wong Fok Lung
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Casey E Hofstaedter
- Department of Microbial Pathogenesis, University of Maryland, Baltimore, Baltimore, MD 21201, USA
| | - Shivang S Shah
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Alexander M Chong
- Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Victor G Castano
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Robert K Ernst
- Department of Microbial Pathogenesis, University of Maryland, Baltimore, Baltimore, MD 21201, USA
| | - Anne-Catrin Uhlemann
- Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Alice Prince
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
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28
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Wojnarowicz PM, Escolano MG, Huang YH, Desai B, Chin Y, Shah R, Xu S, Yadav S, Yaklichkin S, Ouerfelli O, Soni RK, Philip J, Montrose DC, Healey JH, Rajasekhar VK, Garland WA, Ratiu J, Zhuang Y, Norton L, Rosen N, Hendrickson RC, Zhou XK, Iavarone A, Massague J, Dannenberg AJ, Lasorella A, Benezra R. Anti-tumor effects of an ID antagonist with no observed acquired resistance. NPJ Breast Cancer 2021; 7:58. [PMID: 34031428 PMCID: PMC8144414 DOI: 10.1038/s41523-021-00266-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/15/2021] [Indexed: 12/19/2022] Open
Abstract
ID proteins are helix-loop-helix (HLH) transcriptional regulators frequently overexpressed in cancer. ID proteins inhibit basic-HLH transcription factors often blocking differentiation and sustaining proliferation. A small-molecule, AGX51, targets ID proteins for degradation and impairs ocular neovascularization in mouse models. Here we show that AGX51 treatment of cancer cell lines impairs cell growth and viability that results from an increase in reactive oxygen species (ROS) production upon ID degradation. In mouse models, AGX51 treatment suppresses breast cancer colonization in the lung, regresses the growth of paclitaxel-resistant breast tumors when combined with paclitaxel and reduces tumor burden in sporadic colorectal neoplasia. Furthermore, in cells and mice, we fail to observe acquired resistance to AGX51 likely the result of the inability to mutate the binding pocket without loss of ID function and efficient degradation of the ID proteins. Thus, AGX51 is a first-in-class compound that antagonizes ID proteins, shows strong anti-tumor effects and may be further developed for the management of multiple cancers.
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Affiliation(s)
- Paulina M Wojnarowicz
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marta Garcia Escolano
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yun-Han Huang
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Cornell/Sloan Kettering/Rockefeller Tri-Institutional MD-PhD Program, New York, NY, 10065, USA
- Gerstner Sloan Kettering Graduate School of Biomedical Sciences, New York, NY, 10065, USA
| | - Bina Desai
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yvette Chin
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Riddhi Shah
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sijia Xu
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Saurabh Yadav
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sergey Yaklichkin
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ouathek Ouerfelli
- Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Rajesh Kumar Soni
- Proteomics & Microchemistry Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - John Philip
- Proteomics & Microchemistry Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David C Montrose
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Department of Pathology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - John H Healey
- Orthopedics Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | - Jeremy Ratiu
- Department of Immunology, Duke University, Durham, NC, USA
| | - Yuan Zhuang
- Department of Immunology, Duke University, Durham, NC, USA
| | - Larry Norton
- Evelyn H. Lauder Breast Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Neal Rosen
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ronald C Hendrickson
- Proteomics & Microchemistry Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xi Kathy Zhou
- Department of Healthcare Policy and Research Weill Cornell Medical College, New York, NY, USA
| | - Antonio Iavarone
- Department of Neurology, Department of Pathology, Institute for Cancer Genetics, Columbia University Medical Center, New York, NY, USA
| | - Joan Massague
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Anna Lasorella
- Department of Pediatrics, Department of Pathology, Institute for Cancer Genetics, Columbia University Medical Center, New York, NY, USA
| | - Robert Benezra
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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29
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Abstract
We have fabricated Ag-Au alloy nanocubes using the galvanic replacement of silver nanocubes by aqueous HAuCl4 and investigated their morphological, structural, compositional and optical properties. The inter-diffusion between silver and gold at 100 °C leads to the formation of Ag-Au alloy nanocubes with hollow interiors. A broad tuning of the surface plasmon resonance (SPR) wavelength from 624 nm to 920 nm is obtained with the varying volume of HAuCl4. When excited at wavelength 785 nm, the bimetallic Ag-Au nanocubes with pinholes exhibit two-fold Raman intensity enhancement compared to pristine Ag nanocubes. The surface-enhanced Raman spectroscopy (SERS) substrate prepared with Ag-Au alloy nanocubes shows high-intensity enhancement factor of 1.9 × 107 for 11.2 wt% Au content. The SERS-active Ag-Au alloy nanocubes substrates were exploited for the detection of two explosive molecules; p-nitrobenzoic acid (PNBA) and picric acid (PA). Remarkable detection sensitivity and ultra-low detection limit of 1.7 × 10-14 M for PNBA and 4.1 × 10-11 M for PA were obtained, demonstrating the very high SERS detection capabilities of the as-prepared substrate.
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Affiliation(s)
- Govind Kumar
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - R K Soni
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
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30
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Garg R, Soni RK, Singh K. Hernia Uteri Inguinale. Indian J Surg 2020. [DOI: 10.1007/s12262-020-02109-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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31
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Kumar D, Soni RK, Ghai DP. Pulsed photoacoustic and photothermal response of gold nanoparticles. Nanotechnology 2020. [PMID: 31553954 DOI: 10.1088/1361-6528/ab47ae4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Gold nanospheres and nanorods are promising agents for photoacoustic imaging and photothermal therapy. In this work, seed-mediated methods were optimized for the synthesis of gold nanosphere and nanorod collides of different sizes. Nanosecond pulse photoacoustic and photothermal analysis of these nanoparticles was carried out and compared with finite element simulation. The simulations were performed to quantify the size dependent photoacoustic signal enhancement for nanospheres and nanorods. The non-sphericity contribution of nanospheres was found to enhance the photoacoustic signal. Nanosecond pulse photoacoustic studies of nanorods of different aspect ratio were carried out. Nanorods of aspect ratio ∼4.8 were found to be the most efficient photoacoustic signal generators. Photoacoustic studies of nanorods at varying laser fluence were performed and threshold fluence of 5 mJ cm-2 was observed. Nanorods exposed to nanosecond laser pulses underwent size and shape variations which were confirmed by optical absorbance and transmission electron microscopy measurements. Simulations of nanorods of different aspect ratio and diameter were performed to investigate the photoacoustic signal enhancement and photothermal stability. The miniature size nanorod with a diameter of 10 nm and aspect ratio of 5 was found to be most appropriate in terms of photoacoustic signal generation and photothermal stability.
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Affiliation(s)
- D Kumar
- Laser Science and Technology Centre, DRDO, New Delhi 110054, India. Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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32
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Abstract
Gold nanospheres and nanorods are promising agents for photoacoustic imaging and photothermal therapy. In this work, seed-mediated methods were optimized for the synthesis of gold nanosphere and nanorod collides of different sizes. Nanosecond pulse photoacoustic and photothermal analysis of these nanoparticles was carried out and compared with finite element simulation. The simulations were performed to quantify the size dependent photoacoustic signal enhancement for nanospheres and nanorods. The non-sphericity contribution of nanospheres was found to enhance the photoacoustic signal. Nanosecond pulse photoacoustic studies of nanorods of different aspect ratio were carried out. Nanorods of aspect ratio ∼4.8 were found to be the most efficient photoacoustic signal generators. Photoacoustic studies of nanorods at varying laser fluence were performed and threshold fluence of 5 mJ cm-2 was observed. Nanorods exposed to nanosecond laser pulses underwent size and shape variations which were confirmed by optical absorbance and transmission electron microscopy measurements. Simulations of nanorods of different aspect ratio and diameter were performed to investigate the photoacoustic signal enhancement and photothermal stability. The miniature size nanorod with a diameter of 10 nm and aspect ratio of 5 was found to be most appropriate in terms of photoacoustic signal generation and photothermal stability.
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Affiliation(s)
- D Kumar
- Laser Science and Technology Centre, DRDO, New Delhi 110054, India. Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Singh J, Juneja S, Palsaniya S, Manna AK, Soni RK, Bhattacharya J. Evidence of oxygen defects mediated enhanced photocatalytic and antibacterial performance of ZnO nanorods. Colloids Surf B Biointerfaces 2019; 184:110541. [PMID: 31606700 DOI: 10.1016/j.colsurfb.2019.110541] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 11/19/2022]
Abstract
Defect engineered one-dimensional (1D) ZnO nanostructures have found great interest in diverse fields, including water detoxification and environmental remediation. In this article, we report a facile, low-temperature hydrothermal synthesis of defect enriched ZnO nanorods at different pH conditions. The dimension of all the synthesized ZnO nanostructures was restricted to 1D with changes only in their aspect ratios, unlike previous reports where change in morphology accompanies the effect of pH. With an increment in the pH value of the reaction mixture, oxygen defect concentration was controlled and confirmed using XPS and Raman spectroscopy. Considerable increase in optical light absorption and reduction in the bandgap, as inferred from the UV-vis study, corroborating the pH-dependent enrichment of defect states in 1D ZnO. Superior photosensitivity of oxygen defect rich ZnO nanorods was utilized to study their sunlight-induced photocatalytic and bactericidal activity towards its application in wastewater treatment. Within 4 h and 30 min of sunlight exposure (900 W/cm2), a 100% bacterial population (S.aureus, 106 cells/m) killing and complete degradation of methylene blue dye (10μM) were achieved. Enhanced reactive oxidative species (ROS) formation due to the presence of additional oxygen defect states is ascribed to be the prime factor facilitating improved degradation efficiency. Additionally, during the optimization study, ZnO nanorods were found to be active against bacterial cells even in the absence of light opening avenues in antimicrobial food packaging and protective surface coatings.
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Affiliation(s)
- Jaspal Singh
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - Subhavna Juneja
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Shatrudhan Palsaniya
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Ashis K Manna
- Institute of Physics, Sachivalaya Marg, Bhubaneswar, Odisha 751005, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - R K Soni
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110016, India
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Wojnarowicz PM, Lima E Silva R, Ohnaka M, Lee SB, Chin Y, Kulukian A, Chang SH, Desai B, Garcia Escolano M, Shah R, Garcia-Cao M, Xu S, Kadam R, Goldgur Y, Miller MA, Ouerfelli O, Yang G, Arakawa T, Albanese SK, Garland WA, Stoller G, Chaudhary J, Norton L, Soni RK, Philip J, Hendrickson RC, Iavarone A, Dannenberg AJ, Chodera JD, Pavletich N, Lasorella A, Campochiaro PA, Benezra R. A Small-Molecule Pan-Id Antagonist Inhibits Pathologic Ocular Neovascularization. Cell Rep 2019; 29:62-75.e7. [PMID: 31577956 PMCID: PMC6896334 DOI: 10.1016/j.celrep.2019.08.073] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 08/09/2019] [Accepted: 08/23/2019] [Indexed: 02/01/2023] Open
Abstract
Id helix-loop-helix (HLH) proteins (Id1-4) bind E protein bHLH transcription factors, preventing them from forming active transcription complexes that drive changes in cell states. Id proteins are primarily expressed during development to inhibit differentiation, but they become re-expressed in adult tissues in diseases of the vasculature and cancer. We show that the genetic loss of Id1/Id3 reduces ocular neovascularization in mouse models of wet age-related macular degeneration (AMD) and retinopathy of prematurity (ROP). An in silico screen identifies AGX51, a small-molecule Id antagonist. AGX51 inhibits the Id1-E47 interaction, leading to ubiquitin-mediated degradation of Ids, cell growth arrest, and reduced viability. AGX51 is well-tolerated in mice and phenocopies the genetic loss of Id expression in AMD and ROP models by inhibiting retinal neovascularization. Thus, AGX51 is a first-in-class compound that antagonizes an interaction formerly considered undruggable and that may have utility in the management of multiple diseases.
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Affiliation(s)
- Paulina M Wojnarowicz
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Raquel Lima E Silva
- Departments of Ophthalmology and Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Masayuki Ohnaka
- Departments of Ophthalmology and Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Sang Bae Lee
- Institute for Cancer Genetics, Columbia University Medical Center, New York, NY 10032, USA
| | - Yvette Chin
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Anita Kulukian
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sung-Hee Chang
- Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - Bina Desai
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Marta Garcia Escolano
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Riddhi Shah
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Marta Garcia-Cao
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sijia Xu
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Rashmi Kadam
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Yehuda Goldgur
- Structural Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Meredith A Miller
- Structural Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ouathek Ouerfelli
- Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Guangli Yang
- Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Tsutomu Arakawa
- Alliance Protein Laboratories, a Division of KBI Biopharma, San Diego, CA 92121, USA
| | - Steven K Albanese
- Computational Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - Glenn Stoller
- Ophthalmic Consultants of Long Island, Lynbrook, NY 11563, USA
| | - Jaideep Chaudhary
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA
| | - Larry Norton
- Evelyn H. Lauder Breast Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Rajesh Kumar Soni
- Proteomics & Microchemistry Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - John Philip
- Proteomics & Microchemistry Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ronald C Hendrickson
- Proteomics & Microchemistry Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Antonio Iavarone
- Department of Neurology, Department of Pathology, Institute for Cancer Genetics, Columbia University Medical Center, New York, NY 10032, USA
| | - Andrew J Dannenberg
- Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - John D Chodera
- Computational Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Nikola Pavletich
- Structural Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Anna Lasorella
- Department of Pediatrics, Department of Pathology, Institute for Cancer Genetics, Columbia University Medical Center, New York, NY 10032, USA
| | - Peter A Campochiaro
- Departments of Ophthalmology and Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Robert Benezra
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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Abstract
Metal nanostructures with highly branched morphologies are attractive due to their fascinating plasmonic properties which are related to their unique morphological features. In this work a simple fabrication methodology is used for fabrication of surface-enhanced Raman spectroscopy (SERS) substrates composed of branched silver nanostructures with dendritic morphology. The high Raman intensity enhancement factor of the order ∼1010 was achieved which allows the detection of ∼zeptomole thiram molecules by SERS substrates. The appearance of new bands at 344 cm-1 and 1521 cm-1 provides an evidence of contribution of chemical enhancement in SERS. The observed spectral changes in SERS spectrum originate from the adsorption of the analyte on the metal surface and provide an insight into molecule-metal interaction in SERS. The extreme sensitivity of SERS substrates is discussed in terms of the distinction between electromagnetic and chemical enhancement mechanisms. Moreover, the highly sensitive SERS substrates were used for simultaneous detection of Rhodamine B and thiram molecules from their mixture with different individual concentrations demonstrating detection capabilities for the identification of pesticides with dye molecules.
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Affiliation(s)
- Ashwani Kumar Verma
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
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Abstract
We report the shape- and wavelength-dependent ultrasensitive label-free detection of adenine on rhodium cube- and tripod-star-like nanoparticles (Rh NPs) using ultraviolet surface-enhanced Raman scattering (UV-SERS). Rh NPs immobilized on a silane-treated glass substrate probed at near-resonant and non-resonant wavelengths served as the SERS platform for the highly reproducible, stable, and real-time detection of adsorbed adenine molecules in the femtomolar region. The sensitivity of SERS-active Rh NPs displaying LSPR in the UV region was exploited for the 266 nm (DUV), 325 nm (UV) and 532 nm (visible) Raman excitation wavelengths. With the 266 nm and 325 nm DUV-UV excitation lines, for the Rh tripod geometry near or pre-resonant excitation being closer to the analyte absorption band combined with the intrinsic UV-LSPR resonant energy produced a SERS enhancement factor as high as 105 and accelerated photoinduced degradations compared to 532 nm for our substrates. Computational results consistent with the experiment clearly demonstrated that the NP SERS enhancement was sensitive to both the intrinsic optical properties of Rh in the UV region and the excitation closer to the LSPR peak producing larger EM enhancements. The wavelength-dependent correlations between the optical properties of the shape-tailored Rh NPs and SERS enhancements envisage the merit and demerit of DUV-UV excitation over visible excitation for Raman measurements. The as-fabricated SERS substrate could also be efficiently recycled using O2 plasma for the detection of other biomolecules. The use of oxide-free transition metal Rh and DUV-UV excitation thereby extends the improved generality of the SERS technique for ultrasensitive bimolecular detection and for gaining a comprehensive understanding of UV-SERS-based applications.
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Affiliation(s)
- Rupali Das
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India.
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Goyal A, Aslam N, Kaur S, Soni RK, Midha V, Chaudhary A, Dhaliwal LK, Singh B, Chhabra ST, Mohan B, Anand IS, Wander GS. Factors affecting seasonal changes in blood pressure in North India: A population based four-seasons study. Indian Heart J 2017; 70:360-367. [PMID: 29961451 PMCID: PMC6034019 DOI: 10.1016/j.ihj.2017.09.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/12/2017] [Accepted: 09/16/2017] [Indexed: 11/18/2022] Open
Abstract
Objective There are no community based, longitudinal, intra individual epidemiological studies on effect of weather and season on blood pressure (BP). We evaluated the effect of season and temperature on prevalence and epidemiology of BP in tropical climate. Methods and results It was a longitudinal cross sectional survey of rural and urban subjects in their native surroundings. BP was measured in four different seasons in same subjects. A total of 978 subjects (452 rural and 521 urban) were included in the current analysis. Demographic characteristics such as age, gender, education, occupational based physical activity and body mass index (BMI) were recorded. Mean BP, both systolic and diastolic were significantly higher in winter season as compared to summer season. Mean difference between winter and summer was 9.01 (95% CI: 7.74–10.28, p < 0.001) in systolic BP and 5.61 (95% CI: 4.75–6.47, p < 0.001) in diastolic BP. This increase in BP was more marked in rural areas and elderly subjects. Prevalence of hypertension was significantly higher during winter (23.72%) than in summer (10.12%). Conclusion BP increases significantly during winter season as compared to summer season. Increase is more marked in rural areas and elderly subjects. Seasonal variation in BP should be taken into account while looking at prevalence of hypertension in epidemiological studies.
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Affiliation(s)
- Abhishek Goyal
- Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Naved Aslam
- Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | | | - R K Soni
- Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Vandana Midha
- Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | | | | | - Bhupinder Singh
- Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Shibba T Chhabra
- Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Bishav Mohan
- Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Inder S Anand
- University of Minnesota Medical School, VA Medical Center Minneapolis MN, USA
| | - Gurpreet S Wander
- Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India.
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Goyal A, Kahlon P, Jain D, Soni RK, Gulati R, Chhabra ST, Aslam N, Mohan B, Anand IS, Patel V, Wander GS. Trend in prevalence of coronary artery disease and risk factors over two decades in rural Punjab. Heart Asia 2017; 9:e010938. [PMID: 29469907 PMCID: PMC5818047 DOI: 10.1136/heartasia-2017-010938] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/13/2017] [Accepted: 07/26/2017] [Indexed: 01/20/2023]
Abstract
OBJECTIVES The burden of coronary artery disease (CAD) has increased in the last three decades in low-income and middle-income countries including India. CAD is responsible for 20% deaths in India. The burden of CAD has increased due to a higher prevalence of risk factors related to the changing lifestyle. We studied the change in prevalence of CAD and risk factors over 20 years in a rural area. METHODS A rural population of adults over the age of 30 years from three villages of Punjab was surveyed for the prevalence of CAD and its risk factors in 1994 and 2014 using similar research methodology. CAD was diagnosed by Epstein and clinical criteria. Blood pressure, anthropometry, ECG and biochemical analysis were carried out. The findings of two surveys were compared with a look at the change in the prevalence of CAD and its risk factors over 20 years. RESULTS The overall age standardised prevalence of CAD increased from 2.79% in 1994 to 4.06% (p<0.05) in 2014. There was a significant increase in the prevalence of several risk factors including sedentary lifestyle (8.2% vs 41.3%, p<0.001), hypertension (14.5% vs 26.5%, p<0.001), diabetes (4.7% vs 9.7%, p<0.001), obesity (16.6% vs 35.4, p<0.001) and hypercholesterolaemia (7% vs 9.6%, p 0.011). In contrast, cigarette smoking (8.9% vs 3%, p<0.001) and use of desi ghee (51.4% vs 28.5%, p<0.001) decreased. CONCLUSIONS In a rural population of Punjab, the prevalence of several CAD risk factors like sedentary lifestyle, hypertension, diabetes, obesity and hypercholesterolaemia increased over 20 years. These changes in risk factors were associated with a modest increase in prevalence of CAD.
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Affiliation(s)
- Abhishek Goyal
- Department of Cardiology, Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Praneet Kahlon
- Department of Medicine, Punjab Civil Medical Services, Civil Hospital, Barnala, Punjab, India
| | - Dinesh Jain
- Department of Medicine, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - R K Soni
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Rohit Gulati
- WVU Medicine, University Healthcare, Martinsburg, West Virginia, USA
| | - Shibba Takkar Chhabra
- Department of Cardiology, Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Naved Aslam
- Department of Cardiology, Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Bishav Mohan
- Department of Cardiology, Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
| | - Inder S Anand
- University of Minnesota Medical School, VA Medical Center, Minneapolis, Minnesota, USA
| | - Vikram Patel
- Centre for Global Mental Health, London School of Hygiene & Tropical Medicine, London, UK
- Sangath, Goa, India
| | - Gurpreet Singh Wander
- Department of Cardiology, Hero DMC Heart Institute, Dayanand Medical College & Hospital, Ludhiana, Punjab, India
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Taneja A, Kaur S, Soni RK, Bhanupriya, Kaur J, Singla L. Evaluating the Efficacy of Levonorgestrel Intrauterine System and Danazol for Relief of Postoperative Pain in Endometriosis. J Clin Diagn Res 2017; 11:QC10-QC12. [PMID: 28892980 DOI: 10.7860/jcdr/2017/24126.10272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 01/03/2017] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Endometriosis is an oestrogen-dependent disorder, manifests during reproductive years and is associated with pain and infertility. There is considerable debate about the effectiveness of various interventions for pain relief. AIM To evaluate the efficacy of Levonorgestrel Intrauterine System (LNG-IUS) and Danazol in postoperative pain relief for patients with endometriosis. MATERIALS AND METHODS Hundred patients with diagnosis of endometriosis, who were treated laparoscopically, entered the study to receive either danazol (600 mg once daily) or LNG-IUS (inserted during immediate post operative period) postsurgery, for pain relief. Patients were analysed for pain relief according to VAS score and recurrence of disease using ultrasonography at third and sixth months of follow up. RESULTS There were 50% patients in stage IV of endometriosis. Majority of them presented with complaint of infertility (49%) and pelvic pain (43%). It was observed that LNG-IUS was significantly more effective in relieving pain compared to danazol (65.2% vs 38.0%, p<0.05). Recurrence rate was significantly lower in LNG-IUS users compared to other group. CONCLUSION LNG-IUS was found to be more effective in relieving pain compared to danazol.
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Affiliation(s)
- Ashima Taneja
- Professor and Head, Department of Obstetrics and Gynaecology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Satinder Kaur
- Associate Professor, Department of Biochemistry, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - R K Soni
- Professor, Department of Preventive and Social Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Bhanupriya
- Resident, Department of Obstetrics and Gynaecology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Jaspreet Kaur
- Resident, Department of Obstetrics and Gynaecology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Laveen Singla
- Resident, Department of Obstetrics and Gynaecology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
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Jauhari A, Shrivastava A, Soni RK, Darbari A. Pseudo Aneurysm of Aberrant Right Gastroepiploic Artery Mimicking Pseudocyst of Pancreas- A Rare Case Report. J Clin Diagn Res 2017; 11:PD09-PD10. [PMID: 28571209 DOI: 10.7860/jcdr/2017/25314.9651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 01/20/2017] [Indexed: 11/24/2022]
Abstract
Pseudoaneurysm of peripancreatic vessel is a rare complication of pancreatitis. The splenic artery is the most commonly affected vessels close to the pancreas. Pseudoaneurysm of right gastroepiploic artery is rare. It can rupture into Gastro Intestinal (GI) tract, retroperitoneum, peritoneal cavity, biliopancreatic duct or pseudocyst. Clinical diagnosis of unruptured pseudoaneurysm is rarely possible because there are no specific signs and symptoms. We hereby report a case of pseudoaneurysm of aberrant right gastroepiploic artery in 30-year-old male which presented with history of epigastric pain and lump with episode of haematemesis and malena. Diagnosis was suspected on Doppler Ultrasonography (USG), which was later confirmed by CECT and angiography. Patient was treated by coil embolization. The pain and lump in epigastrium disappeared within five to six days. Patient is symptom free after six months of follow up.
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Affiliation(s)
- Abhinav Jauhari
- Senior Resident, Department of Surgery, V.M.M.C. and Safdarjung Hospital, New Delhi, India
| | - Ambuj Shrivastava
- Postgraduate Student, Department of Radio diagnosis, Sri Devarajurs Medical College, Kolar, Karnataka, India
| | - Rajesh Kumar Soni
- Professor, Department of Surgery, V.M.M.C. and Safdarjung Hospital, New Delhi, India
| | - Ashutosh Darbari
- Associate Professor, Department of Surgery, Chirayu Medical College, Bhopal, Madhya Pradesh, India
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Abstract
Background: Pulmonary nocardiosis is a rare but a life-threatening infection caused by Nocardia spp. The diagnosis is often missed and delayed resulting in delay in appropriate treatment and thus higher mortality. Aim: In this study, we aim to evaluate the clinical spectrum and outcome of patients with pulmonary nocardiosis. Methods: A retrospective, 5-year (2009–2014) review of demographic profile, risk factors, clinical manifestations, imaging findings, treatment, and outcome of patients with pulmonary nocardiosis admitted to a tertiary care hospital. Results: The median age of the study subjects was 54 years (range, 16–76) and majority of them (75%) were males. The risk factors for pulmonary nocardiosis identified in our study were long-term steroid use (55.6%), chronic lung disease (52.8%), diabetes (27.8%), and solid-organ transplantation (22.2%). All the patients were symptomatic, and the most common symptoms were cough (91.7%), fever (78%), and expectoration (72%). Almost two-third of the patients were initially misdiagnosed and the alternative diagnosis included pulmonary tuberculosis (n = 7), community-acquired pneumonia (n = 5), lung abscess (n = 4), invasive fungal infection (n = 3), lung cancer (n = 2), and Wegener's granulomatosis (n = 2). The most common radiographic features were consolidation (77.8%) and nodules (56%). The mortality rate for indoor patients was 33% despite treatment. Higher mortality rate was observed among those who had brain abscess (100.0%), HIV positivity (100%), need for mechanical ventilation (87.5%), solid-organ transplantation (50%), and elderly (age > 60 years) patients (43%). Conclusion: The diagnosis of pulmonary nocardiosis is often missed and delayed resulting in delay in appropriate treatment and thus high mortality. A lower threshold for diagnosing pulmonary nocardiosis needs to be exercised, in chest symptomatic patients with underlying chronic lung diseases or systemic immunosuppression, for the early diagnosis, and treatment of this uncommon but potentially lethal disease. Despite treatment mortality remains high, especially in those with brain abscess, HIV positivity, need for mechanical ventilation, solid-organ transplantation, and elderly.
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Affiliation(s)
- Akashdeep Singh
- Department of Pulmonary Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Deepinder Chhina
- Department of Microbiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - R K Soni
- Department of Social and Preventive Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Chandan Kakkar
- Department of Radiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - U S Sidhu
- Department of Pulmonary Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
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Kim M, O'Rourke BP, Soni RK, Jallepalli PV, Hendrickson RC, Tsou MFB. Promotion and Suppression of Centriole Duplication Are Catalytically Coupled through PLK4 to Ensure Centriole Homeostasis. Cell Rep 2016; 16:1195-1203. [PMID: 27425613 PMCID: PMC4972634 DOI: 10.1016/j.celrep.2016.06.069] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/19/2016] [Accepted: 06/15/2016] [Indexed: 11/26/2022] Open
Abstract
PLK4 is the major kinase driving centriole duplication. Duplication occurs only once per cell cycle, forming one new (or daughter) centriole that is tightly engaged to the preexisting (or mother) centriole. Centriole engagement is known to block the reduplication of mother centrioles, but the molecular identity responsible for the block remains unclear. Here, we show that the centriolar cartwheel, the geometric scaffold for centriole assembly, forms the identity of daughter centrioles essential for the block, ceasing further duplication of the mother centriole to which it is engaged. To ensure a steady block, we found that the cartwheel requires constant maintenance by PLK4 through phosphorylation of the same substrate that drives centriole assembly, revealing a parsimonious control in which “assembly” and “block for new assembly” are linked through the same catalytic reaction to achieve homeostasis. Our results support a recently deduced model that the cartwheel-bound PLK4 directly suppresses centriole reduplication.
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Affiliation(s)
- Minhee Kim
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA; Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY 10065, USA
| | - Brian P O'Rourke
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| | - Rajesh Kumar Soni
- Microchemistry and Proteomics Core Facility, Memorial Sloan-Kettering Cancer Center, New York, NY 10065 USA
| | - Prasad V Jallepalli
- Molecular Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| | - Ronald C Hendrickson
- Microchemistry and Proteomics Core Facility, Memorial Sloan-Kettering Cancer Center, New York, NY 10065 USA
| | - Meng-Fu Bryan Tsou
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA; Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY 10065, USA.
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Mishra MK, Soni RK, Mohil RS. Foam Sclerotherapy-Simple Solution for Difficult Problem. Indian J Surg 2016; 78:255-6. [PMID: 27358528 DOI: 10.1007/s12262-016-1450-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 01/26/2016] [Indexed: 11/26/2022] Open
Affiliation(s)
- Manish Kumar Mishra
- Department of surgery, Vardhman Mahavir Medical College and Safdarjang Hospital, New Delhi, 110029 India
| | - Rajesh Kumar Soni
- Department of surgery, Vardhman Mahavir Medical College and Safdarjang Hospital, New Delhi, 110029 India
| | - Ravindra Singh Mohil
- Department of surgery, Vardhman Mahavir Medical College and Safdarjang Hospital, New Delhi, 110029 India
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Mishra MK, Soni RK, Mohil RS, Sinha A. Comparative Study of Outcome of Duplex Ultrasound-Guided, Catheter-Directed Foam Sclerotherapy and Radio-frequency Ablation in the Management of Great Saphenous Varicose Veins. Indian J Surg 2016; 78:375-381. [PMID: 27994333 DOI: 10.1007/s12262-016-1485-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 04/11/2016] [Indexed: 10/21/2022] Open
Abstract
Chronic venous insufficiency of lower limbs is a common problem in adults. We compared the two modalities, namely duplex ultrasound-guided, catheter-directed foam sclerotherapy (UGFS) and radio-frequency ablation (RFA), in the management of great saphenous varicose veins using clinical assessment (Venous Clinical Severity Score, Venous Disability Score) and duplex imaging. Patients presenting with great saphenous vein (GSV) varicosity due to incompetent saphenofemoral junction (SFJ) were selected and randomly assigned in each arm, i.e., duplex UGFS group and RFA group. Patients were assessed on days 7, 30, and 90 both clinically and sonologically. Clinical assessment was based on the Venous Clinical Severity Score (VCSS) and Venous Disability Score (VDS). Obliteration of the treated GSV segment was noted in all the limbs of the RFA group (31/31) on duplex sonography on days 7, 30, and 90, while in the UGFS group, out of 30 limbs, obliteration was successful in 28 (28/30) and 2 had treatment failure. However, outcome of both the groups were statistically comparable (P value > 0.05). After the procedure, improvement in the VCSS was noted in both the study arms in every follow-up and both the modalities were found to be equally effective. Improvement in the Venous Disability Score was there on every follow-up, but maximum improvement was seen on the second visit, i.e., post-treatment day 30. Improvement was statistically significant and equal in both arms after the initial 1 week. Foam sclerotherapy, especially catheter-directed, is as effective as radio-frequency ablation in achieving anatomical obliteration and yielding relief in clinical signs and symptoms in patients with GSV varicosity with SFJ incompetence.
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Affiliation(s)
- Manish Kumar Mishra
- Department of Surgery, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, 110029 India
| | - Rajesh Kumar Soni
- Department of Surgery, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, 110029 India
| | - Ravindra Singh Mohil
- Department of Surgery, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, 110029 India
| | - Ajit Sinha
- Department of Surgery, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, 110029 India
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Abstract
Background: Anxiety and depressive disorders constitute a substantial proportion of the global burden of disease and are projected to form the second most common cause of disability by 2020. Objective: To assess the level of depression and anxiety among middle age women and the possible factors behind it. Materials and Methods: A total of 180 women aged 40–60 years were selected by proportionate sampling technique. Age, education, marital status, socioeconomic status, age at marriage, age at menopause, weight and height were noted. Zung-self-rating scales were used for calculating levels of depression and anxiety in these women. The data were analyzed by using statistical software SPSS. Results: The level of syndromal depression and anxiety was found to be 86.7% and 88.9%, respectively. Most of the subjects had the moderate type of depression (49.5%) followed by mild (29.4%) and severe depression (7.8%). While in case of anxiety, most of the subjects (69.4%) had a mild form of anxiety and 17.8% had moderate anxiety level. A significant difference was observed in the level of depression with respect to marital status (P = 0.009) and in the level of anxiety with respect to age (P = 0.021) in the study subjects. On applying logistic regression, none of the factors studied were found to be significant variables for anxiety or depression in the study population. Conclusion: Depression and anxiety are prevalent among the middle-aged women in rural Punjab. Provision of mental health services in this group is essential.
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Affiliation(s)
- Priya Bansal
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Anurag Chaudhary
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - R K Soni
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Sarit Sharma
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Vikram Kumar Gupta
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Pushapindra Kaushal
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
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Abstract
Thyroid tuberculosis is very uncommon even in countries where tuberculosis is endemic. It is commonly seen secondary to tubercular infection of other organ or tissue by hematogenous spread. There are many different presentations of thyroid tuberculosis. Before the advent of fine needle aspiration cytology (FNAC), all patients had surgery and thyroid tuberculosis was diagnosed only on biopsy of specimen. Nowadays, FNAC can confirm the diagnosis in many cases, and the patient can be cured by standard anti-tubercular treatment without the need for surgery. Surgery is required only when there is suspicion of malignancy and FNAC is inconclusive.
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Affiliation(s)
- Rajesh Kumar Soni
- Department of Surgery, Vardhman Mahavir Medical College and Safdarjang Hospital, New Delhi, 110029 India
| | - Ajit Sinha
- Department of Surgery, Vardhman Mahavir Medical College and Safdarjang Hospital, New Delhi, 110029 India
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Singh R, Soni RK. Improved catalytic activity of laser generated bimetallic and trimetallic nanoparticles. J Nanosci Nanotechnol 2014; 14:6872-6879. [PMID: 25924343 DOI: 10.1166/jnn.2014.9267] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report synthesis of silver nanoparticles, bimetallic (Al2O3@Ag) nanoparticles and trimetallic (Al2O3@AgAu) nanoparticles by nanosecond pulse laser ablation (PLA) in deionized water. Two-step laser ablation methodologies were adopted for the synthesis of bi- and tri-metallic nanoparticles. In this method a silver or gold target was ablated in colloidal solution of γ-alumina nanoparticles prepared by PLA. The TEM image analysis of bimetallic and trimetallic particles reveals deposition of fine silver particles and Ag-Au alloy particles, respectively, on large alumina particles. The laser generated nanoparticles were tested for catalytic reduction of 4-nitrophenol to 4-aminophenol and showed excellent catalytic behaviour. The catalytic rate was greatly improved by incorporation of additional metal in silver nanoparticles. The catalytic efficiency of trimetallic Al2O3@AgAu for reduction of 4-nitrophenol to 4-aminophenol was remarkably enhanced and the catalytic reaction was completed in just 5 sec. Even at very low concentration, both Al2O3@Ag nanoparticles and Al2O3@AgAu nanoparticles showed improved rate of catalytic reduction than monometallic silver nanoparticles. Our results demonstrate that alumina particles in the solution not only provide the active sites for particle dispersion but also improve the catalytic activity.
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Bansal P, Chaudhary A, Soni RK, Gupta V. Epidemiological Determinants of Age at Natural Menopause in Rural Women of Punjab. J Res Med Den Sci 2014. [DOI: 10.5455/jrmds.2014215] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Chaudhary A, Satija M, Sharma S, Singh G, Soni RK, Sachar RK. Awareness and Perceptions of School Children about Female Feticide in Urban Ludhiana. Indian J Community Med 2011; 35:302-4. [PMID: 20922112 PMCID: PMC2940191 DOI: 10.4103/0970-0218.66873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Accepted: 03/25/2010] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Although the Indian girl child's position is precarious throughout the country, she remains the most vulnerable in Punjab. OBJECTIVES To assess the awareness and perceptions of school children regarding female feticide. STUDY DESIGN Crosssectional study. MATERIALS AND METHODS The study involved collection of information regarding knowledge and perception of school students about female feticide using multiple choice questionnaire. A total of 527 students between the age group of 11-18 years of various schools of district Ludhiana, Punjab were the study subjects. They had come to participate in the poster competition on organ donation (SAARC Transplant games), organized by Department of Community Medicine, D.M.C and H, Ludhiana. RESULTS Out of total 527 students, 97.9% were aware of female feticide. Main source of information was TV (56%), followed by newspaper (33%). Majority of the students (65.2 %) felt that discrimination between boys and girls is prevalent in the society. Regarding perception of school students for curbing this social evil, 37.8% school students were of the view that awareness among the masses is the solution to stop this practice, while 25% of the students responded that equal status to girls will stop this practice of female feticide. CONCLUSIONS The school students had optimum level of awareness about female feticide and almost all of them strongly felt that this harmful practice should be stopped altogether.
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Affiliation(s)
- Anurag Chaudhary
- Department of Community Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
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