LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 10

Search options

  1. Article ; Online: Glyceraldehyde-3-Phosphate Dehydrogenase Binds with Spike Protein and Inhibits the Entry of SARS-CoV-2 into Host Cells.

    Dilawari, Rahul / Chaubey, Gaurav Kumar / Modanwal, Radheshyam / Dhiman, Asmita / Talukdar, Sharmila / Kumar, Ajay / Raje, Chaaya Iyengar / Raje, Manoj

    Journal of innate immunity

    2024  Volume 16, Issue 1, Page(s) 133–142

    Abstract: Introduction: Coronavirus disease 2019 caused by coronavirus-2 (SARS-CoV-2) has emerged as an aggressive viral pandemic. Health care providers confront a challenging task for rapid development of effective strategies to combat this and its long-term ... ...

    Abstract Introduction: Coronavirus disease 2019 caused by coronavirus-2 (SARS-CoV-2) has emerged as an aggressive viral pandemic. Health care providers confront a challenging task for rapid development of effective strategies to combat this and its long-term after effects. Virus entry into host cells involves interaction between receptor-binding domain (RBD) of spike (S) protein S1 subunit with angiotensin converting enzyme present on host cells. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a moonlighting enzyme involved in cellular glycolytic energy metabolism and micronutrient homeostasis. It is deployed in various cellular compartments and the extra cellular milieu. Though it is known to moonlight as a component of mammalian innate immune defense machinery, till date its role in viral restriction remains unknown.
    Method: Recombinant S protein, the RBD, and human GAPDH protein were used for solid phase binding assays and biolayer interferometry. Pseudovirus particles expressing four different strain variants of S protein all harboring ZsGreen gene as marker of infection were used for flow cytometry-based infectivity assays.
    Results: Pseudovirus entry into target cells in culture was significantly inhibited by addition of human GAPDH into the extracellular medium. Binding assays demonstrated that human GAPDH binds to S protein and RBD of SARS-CoV-2 with nanomolar affinity.
    Conclusions: Our investigations suggest that this interaction of GAPDH interferes in the viral docking with hACE2 receptors, thereby affecting viral ingress into mammalian cells.
    MeSH term(s) Humans ; Spike Glycoprotein, Coronavirus/metabolism ; SARS-CoV-2/physiology ; COVID-19/virology ; Protein Binding ; Virus Internalization ; HEK293 Cells ; Betacoronavirus/physiology ; Glyceraldehyde-3-Phosphate Dehydrogenases/metabolism ; Pneumonia, Viral/virology ; Pneumonia, Viral/immunology ; Pandemics ; Coronavirus Infections/virology ; Angiotensin-Converting Enzyme 2/metabolism ; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating)
    Chemical Substances Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-) ; GAPDH protein, human (EC 1.2.1.12) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23) ; ACE2 protein, human (EC 3.4.17.23) ; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating) (EC 1.2.1.12)
    Language English
    Publishing date 2024-02-07
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; News
    ZDB-ID 2454158-8
    ISSN 1662-8128 ; 1662-811X
    ISSN (online) 1662-8128
    ISSN 1662-811X
    DOI 10.1159/000535634
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Chronic hyperglycemia impairs anti-microbial function of macrophages in response to Mycobacterium tuberculosis infection.

    Chaubey, Gaurav Kumar / Modanwal, Radheshyam / Dilawari, Rahul / Talukdar, Sharmila / Dhiman, Asmita / Chaudhary, Surbhi / Patidar, Anil / Raje, Chaaya Iyengar / Raje, Manoj

    Immunologic research

    2024  

    Abstract: Diabetes mellitus (DM) is a major risk factor for tuberculosis (TB), though the underlying mechanisms linking DM and TB remain ambiguous. Macrophages are a key player in the innate immune response and their phagocytic ability is enhanced in response to ... ...

    Abstract Diabetes mellitus (DM) is a major risk factor for tuberculosis (TB), though the underlying mechanisms linking DM and TB remain ambiguous. Macrophages are a key player in the innate immune response and their phagocytic ability is enhanced in response to microbial infections. Upon infection or inflammation, they also repel invading pathogens by generating; reactive oxygen species (ROS), reactive nitrogen species (RNS), pro-inflammatory cytokines (IL-1β and IL-6), and anti-inflammatory cytokines (IL-10). However, the robustness of these innate defensive capabilities of macrophages when exposed to hyperglycemia remains unclear. In our current work, we explored the production of these host defense molecules in response to challenge with Mycobacterium tuberculosis (Mtb) infection and lipopolysaccharide (LPS) stimulation. Utilizing peritoneal macrophages from high-fat diet + streptozotocin induced diabetic mice and hyperglycemic THP-1-derived macrophages as model systems; we found that LPS stimulation and Mtb infection were ineffective in stimulating the production of ROS, RNS, and pro-inflammatory cytokines in cells exposed to hyperglycemia. On the contrary, an increase in production of anti-inflammatory cytokines was observed. To confirm the mechanism of decreased anti-bacterial activity of the diabetic macrophage, we explored activation status of these compromised macrophages and found decreased surface expression of activation (TLR-4) and differentiation markers (CD11b and CD11c). We postulate that this could be the cause for higher susceptibility for Mtb infection among diabetic individuals.
    Language English
    Publishing date 2024-02-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632857-x
    ISSN 1559-0755 ; 0257-277X
    ISSN (online) 1559-0755
    ISSN 0257-277X
    DOI 10.1007/s12026-024-09462-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Excess iron aggravates the severity of COVID-19 infection.

    Chaubey, Gaurav Kumar / Dilawari, Rahul / Modanwal, Radheshyam / Talukdar, Sharmila / Dhiman, Asmita / Raje, Chaaya Iyengar / Raje, Manoj

    Free radical biology & medicine

    2023  Volume 208, Page(s) 186–193

    Abstract: Coronavirus disease-19 (COVID-19) can induce severe inflammation of the lungs and respiratory system. Severe COVID-19 is frequently associated with hyper inflammation and hyper-ferritinemia. High iron levels are known to trigger pro-inflammatory effects. ...

    Abstract Coronavirus disease-19 (COVID-19) can induce severe inflammation of the lungs and respiratory system. Severe COVID-19 is frequently associated with hyper inflammation and hyper-ferritinemia. High iron levels are known to trigger pro-inflammatory effects. Cumulative iron loading negatively impacts on a patients innate immune effector functions and increases the risk for infection related complications. Prognosis of severe acute respiratory SARS-CoV-2 patients may be impacted by iron excess. Iron is an essential co-factor for numerous essential cellular enzymes and vital cellular operations. Viruses hijack cells in order to replicate, and efficient replication requires an iron-replete host. Utilizing iron loaded cells in culture we evaluated their susceptibility to infection by pseudovirus expressing the SARS-CoV-2 spike protein and resultant cellular inflammatory response. We observed that, high levels of iron enhanced host cell ACE2 receptor expression contributing to higher infectivity of pseudovirus. In vitro Cellular iron overload also synergistically enhanced the levels of; reactive oxygen species, reactive nitrogen species, pro-inflammatory cytokines (IL-1β, IL-6, IL-8 & TNF-α) and chemokine (CXCL-1&CCL-4) production in response to inflammatory stimulation of cells with spike protein. These results were confirmed using an in vivo mouse model. In future, limiting iron levels may be a promising adjuvant strategy in treating viral infection.
    MeSH term(s) Humans ; Animals ; Mice ; COVID-19 ; SARS-CoV-2 ; Inflammation ; Iron Overload ; Iron
    Chemical Substances spike protein, SARS-CoV-2 ; Iron (E1UOL152H7)
    Language English
    Publishing date 2023-08-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 807032-5
    ISSN 1873-4596 ; 0891-5849
    ISSN (online) 1873-4596
    ISSN 0891-5849
    DOI 10.1016/j.freeradbiomed.2023.08.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Host glyceraldehyde-3-phosphate dehydrogenase-mediated iron acquisition is hijacked by intraphagosomal Mycobacterium tuberculosis

    Patidar, Anil / Malhotra, Himanshu / Chaudhary, Surbhi / Kumar, Manoj / Dilawari, Rahul / Chaubey, Gaurav Kumar / Dhiman, Asmita / Modanwal, Radheshyam / Talukdar, Sharmila / Raje, Chaaya Iyengar / Raje, Manoj

    Cell. Mol. Life Sci.. 2022 Jan., v. 79, no. 1 p.62-62

    2022  

    Abstract: Availability of iron is a key factor in the survival and multiplication of Mycobacterium tuberculosis (M.tb) within host macrophage phagosomes. Despite host cell iron regulatory machineries attempts to deny supply of this essential micronutrient, ... ...

    Abstract Availability of iron is a key factor in the survival and multiplication of Mycobacterium tuberculosis (M.tb) within host macrophage phagosomes. Despite host cell iron regulatory machineries attempts to deny supply of this essential micronutrient, intraphagosomal M.tb continues to access extracellular iron. In the current study, we report that intracellular M.tb exploits mammalian secreted Glyceraldehyde 3-phosphate dehydrogenase (sGAPDH) for the delivery of host iron carrier proteins lactoferrin (Lf) and transferrin (Tf). Studying the trafficking of iron carriers in infected cells we observed that sGAPDH along with the iron carrier proteins are preferentially internalized into infected cells and trafficked to M.tb containing phagosomes where they are internalized by resident mycobacteria resulting in iron delivery. Collectively our findings provide a new mechanism of iron acquisition by M.tb involving the hijack of host sGAPDH. This may contribute to its successful pathogenesis and provide an option for targeted therapeutic intervention.
    Keywords Mycobacterium tuberculosis ; glyceraldehyde 3-phosphate ; glyceraldehyde-3-phosphate dehydrogenase ; iron ; lactoferrin ; macrophages ; mammals ; pathogenesis ; phagosomes ; therapeutics ; transferrin
    Language English
    Dates of publication 2022-01
    Size p. 62.
    Publishing place Springer International Publishing
    Document type Article ; Online
    ZDB-ID 1358415-7
    ISSN 1420-9071 ; 1420-682X
    ISSN (online) 1420-9071
    ISSN 1420-682X
    DOI 10.1007/s00018-021-04110-3
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  5. Article ; Online: Regulation of Macrophage Cell Surface GAPDH Alters LL-37 Internalization and Downstream Effects in the Cell.

    Dhiman, Asmita / Talukdar, Sharmila / Chaubey, Gaurav Kumar / Dilawari, Rahul / Modanwal, Radheshyam / Chaudhary, Surbhi / Patidar, Anil / Boradia, Vishant Mahendra / Kumbhar, Pradeep / Raje, Chaaya Iyengar / Raje, Manoj

    Journal of innate immunity

    2023  Volume 15, Issue 1, Page(s) 581–598

    Abstract: Mycobacterium tuberculosis (M.tb), the major causative agent of tuberculosis, has evolved mechanisms to evade host defenses and persist within host cells. Host-directed therapies against infected cells are emerging as an effective option. Cationic host ... ...

    Abstract Mycobacterium tuberculosis (M.tb), the major causative agent of tuberculosis, has evolved mechanisms to evade host defenses and persist within host cells. Host-directed therapies against infected cells are emerging as an effective option. Cationic host defense peptide LL-37 is known to internalize into cells and induce autophagy resulting in intracellular killing of M.tb. This peptide also regulates the immune system and interacts with the multifunctional protein glyceraldehyde-3-phosphate dehydrogenase (GAPDH) inside macrophages. Our investigations revealed that GAPDH moonlights as a mononuclear cell surface receptor that internalizes LL-37. We confirmed that the surface levels of purinergic receptor 7, the receptor previously reported for this peptide, remained unaltered on M.tb infected macrophages. Upon infection or cellular activation with IFNγ, surface recruited GAPDH bound to and internalized LL-37 into endocytic compartments via a lipid raft-dependent process. We also discovered a role for GAPDH in LL-37-mediated autophagy induction and clearance of intracellular pathogens. In infected macrophages wherein GAPDH had been knocked down, we observed an inhibition of LL-37-mediated autophagy which was rescued by GAPDH overexpression. This process was dependent on intracellular calcium and p38 MAPK pathways. Our findings reveal a previously unknown process by which macrophages internalize an antimicrobial peptide via cell surface GAPDH and suggest a moonlighting role of GAPDH in regulating cellular phenotypic responses of LL-37 resulting in reduction of M.tb burden.
    MeSH term(s) Humans ; Macrophages ; Glyceraldehyde-3-Phosphate Dehydrogenases/metabolism ; Mycobacterium tuberculosis/physiology ; Tuberculosis ; Antimicrobial Cationic Peptides/metabolism
    Chemical Substances Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-) ; Antimicrobial Cationic Peptides
    Language English
    Publishing date 2023-04-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2454158-8
    ISSN 1662-8128 ; 1662-811X
    ISSN (online) 1662-8128
    ISSN 1662-811X
    DOI 10.1159/000530083
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Exposure of a specific pleioform of multifunctional glyceraldehyde 3-phosphate dehydrogenase initiates CD14-dependent clearance of apoptotic cells.

    Chaudhary, Surbhi / Patidar, Anil / Dhiman, Asmita / Chaubey, Gaurav Kumar / Dilawari, Rahul / Talukdar, Sharmila / Modanwal, Radheshyam / Raje, Manoj

    Cell death & disease

    2021  Volume 12, Issue 10, Page(s) 892

    Abstract: Rapid clearance of apoptotic cells by phagocytes is crucial for organogenesis, tissue homeostasis, and resolution of inflammation. This process is initiated by surface exposure of various 'eat me' ligands. Though phosphatidylserine (PS) is the best ... ...

    Abstract Rapid clearance of apoptotic cells by phagocytes is crucial for organogenesis, tissue homeostasis, and resolution of inflammation. This process is initiated by surface exposure of various 'eat me' ligands. Though phosphatidylserine (PS) is the best recognized general recognition ligand till date, recent studies have shown that PS by itself is not sufficient for clearance of apoptotic cells. In this study, we have identified a specific pleioform of GAPDH (Glyceraldehyde 3-phosphate dehydrogenase) that functions as an 'eat me' signal on apoptotic cell surface. This specific form of GAPDH which is exposed on surface of apoptotic cells was found to interact with CD14 present on plasma membrane of phagocytes leading to their engulfment. This is the first study demonstrating the novel interaction between multifunctional GAPDH and the phagocytic receptor CD14 resulting in apoptotic cell clearance (efferocytosis).
    MeSH term(s) Apoptosis ; Cell Line ; Cell Membrane/metabolism ; Exocytosis ; Glyceraldehyde-3-Phosphate Dehydrogenases/metabolism ; Humans ; Lipopolysaccharide Receptors/metabolism ; Lysosomes/metabolism ; Phagocytes/metabolism ; Phagocytosis ; Phosphatidylserines/metabolism ; Phospholipid Transfer Proteins/metabolism ; Protein Binding ; Protein Isoforms/metabolism ; Stress, Physiological
    Chemical Substances Lipopolysaccharide Receptors ; Phosphatidylserines ; Phospholipid Transfer Proteins ; Protein Isoforms ; Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-)
    Language English
    Publishing date 2021-09-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/s41419-021-04168-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Host glyceraldehyde-3-phosphate dehydrogenase-mediated iron acquisition is hijacked by intraphagosomal Mycobacterium tuberculosis.

    Patidar, Anil / Malhotra, Himanshu / Chaudhary, Surbhi / Kumar, Manoj / Dilawari, Rahul / Chaubey, Gaurav Kumar / Dhiman, Asmita / Modanwal, Radheshyam / Talukdar, Sharmila / Raje, Chaaya Iyengar / Raje, Manoj

    Cellular and molecular life sciences : CMLS

    2022  Volume 79, Issue 1, Page(s) 62

    Abstract: Availability of iron is a key factor in the survival and multiplication of Mycobacterium tuberculosis (M.tb) within host macrophage phagosomes. Despite host cell iron regulatory machineries attempts to deny supply of this essential micronutrient, ... ...

    Abstract Availability of iron is a key factor in the survival and multiplication of Mycobacterium tuberculosis (M.tb) within host macrophage phagosomes. Despite host cell iron regulatory machineries attempts to deny supply of this essential micronutrient, intraphagosomal M.tb continues to access extracellular iron. In the current study, we report that intracellular M.tb exploits mammalian secreted Glyceraldehyde 3-phosphate dehydrogenase (sGAPDH) for the delivery of host iron carrier proteins lactoferrin (Lf) and transferrin (Tf). Studying the trafficking of iron carriers in infected cells we observed that sGAPDH along with the iron carrier proteins are preferentially internalized into infected cells and trafficked to M.tb containing phagosomes where they are internalized by resident mycobacteria resulting in iron delivery. Collectively our findings provide a new mechanism of iron acquisition by M.tb involving the hijack of host sGAPDH. This may contribute to its successful pathogenesis and provide an option for targeted therapeutic intervention.
    MeSH term(s) Animals ; Biological Transport/physiology ; Cell Line, Tumor ; Glyceraldehyde-3-Phosphate Dehydrogenases/metabolism ; Humans ; Iron/metabolism ; L Cells ; Lactoferrin/metabolism ; Mice ; Mice, Inbred C57BL ; Mycobacterium tuberculosis/metabolism ; Phagosomes/metabolism ; THP-1 Cells ; Transferrin/metabolism ; Tuberculosis/pathology
    Chemical Substances Transferrin ; Iron (E1UOL152H7) ; Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-) ; Lactoferrin (EC 3.4.21.-)
    Language English
    Publishing date 2022-01-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1358415-7
    ISSN 1420-9071 ; 1420-682X
    ISSN (online) 1420-9071
    ISSN 1420-682X
    DOI 10.1007/s00018-021-04110-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Glyceraldehyde-3-Phosphate Dehydrogenase Facilitates Macroautophagic Degradation of Mutant Huntingtin Protein Aggregates.

    Chaudhary, Surbhi / Dhiman, Asmita / Dilawari, Rahul / Chaubey, Gaurav Kumar / Talukdar, Sharmila / Modanwal, Radheshyam / Patidar, Anil / Malhotra, Himanshu / Raje, Chaaya Iyengar / Raje, Manoj

    Molecular neurobiology

    2021  Volume 58, Issue 11, Page(s) 5790–5798

    Abstract: Protein aggregate accumulation is a pathological hallmark of several neurodegenerative disorders. Autophagy is critical for clearance of aggregate-prone proteins. In this study, we identify a novel role of the multifunctional glycolytic enzyme ... ...

    Abstract Protein aggregate accumulation is a pathological hallmark of several neurodegenerative disorders. Autophagy is critical for clearance of aggregate-prone proteins. In this study, we identify a novel role of the multifunctional glycolytic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in clearance of intracellular protein aggregates. Previously, it has been reported that though clearance of wild-type huntingtin protein is mediated by chaperone-mediated autophagy (CMA), however, degradation of mutant huntingtin (mHtt with numerous poly Q repeats) remains impaired by this route as mutant Htt binds with high affinity to Hsc70 and LAMP-2A. This delays delivery of misfolded protein to lysosomes and results in accumulation of intracellular aggregates which are degraded only by macroautophagy. Earlier investigations also suggest that mHtt causes inactivation of mTOR signaling, causing upregulation of autophagy. GAPDH had earlier been reported to interact with mHtt resulting in cellular toxicity. Utilizing a cell culture model of mHtt aggregates coupled with modulation of GAPDH expression, we analyzed the formation of intracellular aggregates and correlated this with autophagy induction. We observed that GAPDH knockdown cells transfected with N-terminal mutant huntingtin (103 poly Q residues) aggregate-prone protein exhibit diminished autophagy. GAPDH was found to regulate autophagy via the mTOR pathway. Significantly more and larger-sized huntingtin protein aggregates were observed in GAPDH knockdown cells compared to empty vector-transfected control cells. This correlated with the observed decrease in autophagy. Overexpression of GAPDH had a protective effect on cells resulting in a decreased load of aggregates. Our results demonstrate that GAPDH assists in the clearance of protein aggregates by autophagy induction. These findings provide a new insight in understanding the mechanism of mutant huntingtin aggregate clearance. By studying the molecular mechanism of protein aggregate clearance via GAPDH, we hope to provide a new approach in targeting and understanding several neurodegenerative disorders.
    MeSH term(s) Autophagy/physiology ; Cell Line, Tumor ; Gene Knockdown Techniques ; Glyceraldehyde-3-Phosphate Dehydrogenases/antagonists & inhibitors ; Glyceraldehyde-3-Phosphate Dehydrogenases/genetics ; Glyceraldehyde-3-Phosphate Dehydrogenases/physiology ; HEK293 Cells ; Humans ; Huntingtin Protein/genetics ; Huntingtin Protein/metabolism ; Neuroblastoma ; Peptides/genetics ; Protein Aggregates ; RNA Interference ; RNA, Small Interfering/genetics ; RNA, Small Interfering/pharmacology ; Ras Homolog Enriched in Brain Protein/metabolism ; TOR Serine-Threonine Kinases/metabolism
    Chemical Substances HTT protein, human ; Huntingtin Protein ; Peptides ; Protein Aggregates ; RHEB protein, human ; RNA, Small Interfering ; Ras Homolog Enriched in Brain Protein ; polyglutamine (26700-71-0) ; Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-) ; MTOR protein, human (EC 2.7.1.1) ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2021-08-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 645020-9
    ISSN 1559-1182 ; 0893-7648
    ISSN (online) 1559-1182
    ISSN 0893-7648
    DOI 10.1007/s12035-021-02532-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Moonlighting glyceraldehyde-3-phosphate dehydrogenase (GAPDH) modulates protein aggregation.

    Chaudhary, Surbhi / Dhiman, Asmita / Patidar, Anil / Malhotra, Himanshu / Talukdar, Sharmila / Dilawari, Rahul / Chaubey, Gaurav Kumar / Modanwal, Radheshyam / Raje, Chaaya Iyengar / Raje, Manoj

    Biochimica et biophysica acta. Molecular basis of disease

    2021  Volume 1867, Issue 10, Page(s) 166202

    Abstract: Onset of protein aggregation reflects failure of the cellular folding machinery to keep aggregation-prone protein from misfolding and accumulating into a non-degradable state. FRET based analysis and biochemical data reveal that cytosolic prion (cyPrP) ... ...

    Abstract Onset of protein aggregation reflects failure of the cellular folding machinery to keep aggregation-prone protein from misfolding and accumulating into a non-degradable state. FRET based analysis and biochemical data reveal that cytosolic prion (cyPrP) and httQ-103 interact with the multifunctional protein glyceraldehyde-3-phosphate dehydrogenase (GAPDH) leading to few detectable aggregates in GAPDH-over expressing cells.The preventive effect of GAPDH suggests that this abundant and long-lived cytoplasmic protein has an active role in the shielding and maintenance, in soluble form of proteins as heterogeneous as huntingtin and cyPrP.
    MeSH term(s) Animals ; COS Cells ; Cell Line ; Cell Line, Tumor ; Chlorocebus aethiops ; Glyceraldehyde-3-Phosphate Dehydrogenases/metabolism ; HeLa Cells ; Humans ; Protein Aggregates/physiology
    Chemical Substances Protein Aggregates ; Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-)
    Language English
    Publishing date 2021-06-16
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 60-7
    ISSN 1879-260X ; 1879-2596 ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650 ; 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    ISSN (online) 1879-260X ; 1879-2596 ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650
    ISSN 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    DOI 10.1016/j.bbadis.2021.166202
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Induced cumulus expansion of poor quality buffalo cumulus oocyte complexes by Interleukin-1beta improves their developmental ability.

    Chaubey, Gaurav Kumar / Kumar, Sandeep / Kumar, Manish / Sarwalia, Parul / Kumaresan, Arumugam / De, Sachinandan / Kumar, Rakesh / Datta, Tirtha Kumar

    Journal of cellular biochemistry

    2018  Volume 119, Issue 7, Page(s) 5750–5760

    Abstract: The present study was conceived with the aim of modulating the cumulus expansion characteristics of poor quality (BCB-) buffalo oocyte complexes (COCs) in order to improve their fertilization outcomes. BCB- COCs were subjected to in vitro maturation (IVM) ...

    Abstract The present study was conceived with the aim of modulating the cumulus expansion characteristics of poor quality (BCB-) buffalo oocyte complexes (COCs) in order to improve their fertilization outcomes. BCB- COCs were subjected to in vitro maturation (IVM) in presence of Interleukin-1 beta (IL-1β) along with BCB- (control) and good quality (BCB+) COCs. Results were assessed morphologically, by scanning electron microscopy (SEM) and by expression analysis of cumulus expansion related genes. Also, numbers of zona pellucida bound spermatozoa were counted and development rates of oocytes were monitored under different groups. Expression of versican isoforms and ADAMTS-1 was observed to be significantly different between cumulus cells of BCB+ and BCB- COCs. Upon IL-1β supplementation, ADAMTS-1 expression increased in BCB- COCs along with corresponding cumulus expansion rates. SEM analysis also revealed improved cumulus expansion in IL-1β supplemented BCB- COCs. HAS2 and TNFAIP-6 were significantly up-regulated after IL-1β supplementation while PTGS2 expression remained unaffected. Significantly more numbers of sperms crossed the cumulus barrier, especially in 100 ng/mL IL-1β supplemented COCs. Besides, cleavage and blastocyst development rates were also improved upon IL-1β addition. We concluded that IL-1β supplementation in IVM medium can improve cumulus expansion and development ability of poor quality buffalo oocytes.
    MeSH term(s) Animals ; Buffaloes ; Cells, Cultured ; Cumulus Cells/cytology ; Cumulus Cells/drug effects ; Cumulus Cells/metabolism ; Embryonic Development/drug effects ; Female ; Gene Expression Regulation, Developmental ; Interleukin-1beta/pharmacology ; Male ; Oocytes/cytology ; Oocytes/drug effects ; Oocytes/metabolism
    Chemical Substances Interleukin-1beta
    Language English
    Publishing date 2018-03-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 392402-6
    ISSN 1097-4644 ; 0730-2312
    ISSN (online) 1097-4644
    ISSN 0730-2312
    DOI 10.1002/jcb.26688
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top