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  1. Article ; Online: Interaction between host G3BP and viral nucleocapsid protein regulates SARS-CoV-2 replication and pathogenicity.

    Yang, Zemin / Johnson, Bryan A / Meliopoulos, Victoria A / Ju, Xiaohui / Zhang, Peipei / Hughes, Michael P / Wu, Jinjun / Koreski, Kaitlin P / Clary, Jemma E / Chang, Ti-Cheng / Wu, Gang / Hixon, Jeff / Duffner, Jay / Wong, Kathy / Lemieux, Rene / Lokugamage, Kumari G / Alvarado, R Elias / Crocquet-Valdes, Patricia A / Walker, David H /
    Plante, Kenneth S / Plante, Jessica A / Weaver, Scott C / Kim, Hong Joo / Meyers, Rachel / Schultz-Cherry, Stacey / Ding, Qiang / Menachery, Vineet D / Taylor, J Paul

    Cell reports

    2024  Volume 43, Issue 3, Page(s) 113965

    Abstract: G3BP1/2 are paralogous proteins that promote stress granule formation in response to cellular stresses, including viral infection. The nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) inhibits stress granule ... ...

    Abstract G3BP1/2 are paralogous proteins that promote stress granule formation in response to cellular stresses, including viral infection. The nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) inhibits stress granule assembly and interacts with G3BP1/2 via an ITFG motif, including residue F17, in the N protein. Prior studies examining the impact of the G3PB1-N interaction on SARS-CoV-2 replication have produced inconsistent findings, and the role of this interaction in pathogenesis is unknown. Here, we use structural and biochemical analyses to define the residues required for G3BP1-N interaction and structure-guided mutagenesis to selectively disrupt this interaction. We find that N-F17A mutation causes highly specific loss of interaction with G3BP1/2. SARS-CoV-2 N-F17A fails to inhibit stress granule assembly in cells, has decreased viral replication, and causes decreased pathology in vivo. Further mechanistic studies indicate that the N-F17-mediated G3BP1-N interaction promotes infection by limiting sequestration of viral genomic RNA (gRNA) into stress granules.
    MeSH term(s) Humans ; SARS-CoV-2/genetics ; DNA Helicases/metabolism ; RNA Helicases/metabolism ; RNA Recognition Motif Proteins/metabolism ; Poly-ADP-Ribose Binding Proteins/metabolism ; Virulence ; COVID-19 ; RNA, Guide, CRISPR-Cas Systems ; Nucleocapsid Proteins ; Virus Replication ; RNA, Viral/genetics
    Chemical Substances DNA Helicases (EC 3.6.4.-) ; RNA Helicases (EC 3.6.4.13) ; RNA Recognition Motif Proteins ; Poly-ADP-Ribose Binding Proteins ; RNA, Guide, CRISPR-Cas Systems ; Nucleocapsid Proteins ; RNA, Viral ; G3BP1 protein, human (EC 3.6.4.12)
    Language English
    Publishing date 2024-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2024.113965
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Diverse Durham collection phages demonstrate complex BREX defense responses.

    Kelly, Abigail / Went, Sam C / Mariano, Giuseppina / Shaw, Liam P / Picton, David M / Duffner, Samuel J / Coates, Isabel / Herdman-Grant, Ryan / Gordeeva, Julia / Drobiazko, Alena / Isaev, Artem / Lee, Yan-Jiun / Luyten, Yvette / Morgan, Richard D / Weigele, Peter / Severinov, Konstantin / Wenner, Nicolas / Hinton, Jay C D / Blower, Tim R

    Applied and environmental microbiology

    2023  Volume 89, Issue 9, Page(s) e0062323

    Abstract: Bacteriophages (phages) outnumber bacteria ten-to-one and cause infections at a rate of ... ...

    Abstract Bacteriophages (phages) outnumber bacteria ten-to-one and cause infections at a rate of 10
    MeSH term(s) Bacteriophages/physiology ; Phylogeny ; Biological Evolution ; Bacteria ; England
    Language English
    Publishing date 2023-09-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 223011-2
    ISSN 1098-5336 ; 0099-2240
    ISSN (online) 1098-5336
    ISSN 0099-2240
    DOI 10.1128/aem.00623-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The possible perils of targeted therapy.

    Duffner, U / Abdel-Mageed, A / Younge, J / Tornga, C / Scott, K / Staddon, J / Elliott, K / Stumph, J / Kidd, P

    Leukemia

    2016  Volume 30, Issue 7, Page(s) 1619–1621

    MeSH term(s) Antibodies, Bispecific/adverse effects ; Antineoplastic Agents, Immunological/adverse effects ; Female ; Histone-Lysine N-Methyltransferase/genetics ; Humans ; Leukemia, Monocytic, Acute/etiology ; Leukemia, Monocytic, Acute/genetics ; Molecular Targeted Therapy/adverse effects ; Myeloid-Lymphoid Leukemia Protein/genetics ; Neoplasms, Second Primary/genetics ; Neoplasms, Second Primary/pathology ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy ; Young Adult
    Chemical Substances Antibodies, Bispecific ; Antineoplastic Agents, Immunological ; KMT2A protein, human ; Myeloid-Lymphoid Leukemia Protein (149025-06-9) ; blinatumomab (4FR53SIF3A) ; Histone-Lysine N-Methyltransferase (EC 2.1.1.43)
    Language English
    Publishing date 2016-02-09
    Publishing country England
    Document type Case Reports ; Letter
    ZDB-ID 807030-1
    ISSN 1476-5551 ; 0887-6924
    ISSN (online) 1476-5551
    ISSN 0887-6924
    DOI 10.1038/leu.2016.18
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Interaction between host G3BP and viral nucleocapsid protein regulates SARS-CoV-2 replication.

    Yang, Zemin / Johnson, Bryan A / Meliopoulos, Victoria A / Ju, Xiaohui / Zhang, Peipei / Hughes, Michael P / Wu, Jinjun / Koreski, Kaitlin P / Chang, Ti-Cheng / Wu, Gang / Hixon, Jeff / Duffner, Jay / Wong, Kathy / Lemieux, Rene / Lokugamage, Kumari G / Alvardo, Rojelio E / Crocquet-Valdes, Patricia A / Walker, David H / Plante, Kenneth S /
    Plante, Jessica A / Weaver, Scott C / Kim, Hong Joo / Meyers, Rachel / Schultz-Cherry, Stacey / Ding, Qiang / Menachery, Vineet D / Taylor, J Paul

    bioRxiv : the preprint server for biology

    2023  

    Abstract: G3BP1/2 are paralogous proteins that promote stress granule formation in response to cellular stresses, including viral infection. G3BP1/2 are prominent interactors of the nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS- ... ...

    Abstract G3BP1/2 are paralogous proteins that promote stress granule formation in response to cellular stresses, including viral infection. G3BP1/2 are prominent interactors of the nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, the functional consequences of the G3BP1-N interaction in the context of viral infection remain unclear. Here we used structural and biochemical analyses to define the residues required for G3BP1-N interaction, followed by structure-guided mutagenesis of G3BP1 and N to selectively and reciprocally disrupt their interaction. We found that mutation of F17 within the N protein led to selective loss of interaction with G3BP1 and consequent failure of the N protein to disrupt stress granule assembly. Introduction of SARS-CoV-2 bearing an F17A mutation resulted in a significant decrease in viral replication and pathogenesis in vivo, indicating that the G3BP1-N interaction promotes infection by suppressing the ability of G3BP1 to form stress granules.
    Language English
    Publishing date 2023-06-30
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.06.29.546885
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Treatment of children with simple febrile seizures: the AAP practice parameter. American Academy of Pediatrics.

    Baumann, R J / Duffner, P K

    Pediatric neurology

    2000  Volume 23, Issue 1, Page(s) 11–17

    Abstract: Febrile seizures are the most common seizure disorder in childhood, occurring in 2-5% of children. Despite their frequency, there has been little unanimity of opinion regarding the need for long-term antiepileptic therapy. As such, the American Academy ... ...

    Abstract Febrile seizures are the most common seizure disorder in childhood, occurring in 2-5% of children. Despite their frequency, there has been little unanimity of opinion regarding the need for long-term antiepileptic therapy. As such, the American Academy of Pediatrics formulated a subcommittee to study the subject. A Practice Parameter was developed that addressed the issue of whether continuous or intermittent antiepileptic therapy is necessary for children with simple febrile seizures. The committee determined that with the exception of a high rate of recurrence, no long-term adverse effects of simple febrile seizures have been identified. The risk of developing epilepsy is extremely low and, even in those patients who do, there is no evidence that recurrent simple febrile seizures produce structural central nervous system damage. Also, there is no evidence that recurrent simple febrile seizures cause either learning problems or premature death. The committee concluded that although there is the evidence that continuous antiepileptic therapy with phenobarbital or valproic acid and intermittent therapy with diazepam are effective in reducing the risk of recurrence, the potential toxicities associated with antiepileptic therapy outweigh the relatively minor risks associated with simple febrile seizures. As such, long-term treatment is not recommended.
    MeSH term(s) Adolescent ; Anticonvulsants/administration & dosage ; Anticonvulsants/adverse effects ; Child ; Child, Preschool ; Clinical Trials as Topic ; Drug Therapy, Combination ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Pediatrics/standards ; Phenobarbital/administration & dosage ; Phenobarbital/adverse effects ; Risk Assessment ; Secondary Prevention ; Seizures, Febrile/drug therapy ; Seizures, Febrile/prevention & control ; United States ; Valproic Acid/administration & dosage ; Valproic Acid/adverse effects
    Chemical Substances Anticonvulsants ; Valproic Acid (614OI1Z5WI) ; Phenobarbital (YQE403BP4D)
    Language English
    Publishing date 2000-07
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 639164-3
    ISSN 1873-5150 ; 0887-8994
    ISSN (online) 1873-5150
    ISSN 0887-8994
    DOI 10.1016/s0887-8994(00)00148-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A synopsis of the American Academy of Pediatrics' practice parameters on the evaluation and treatment of children with febrile seizures.

    Duffner, P K / Baumann, R J

    Pediatrics in review

    1999  Volume 20, Issue 8, Page(s) 285–287

    MeSH term(s) Child ; Child, Preschool ; Electroencephalography ; Humans ; Infant ; Infant, Newborn ; Pediatrics/methods ; Practice Guidelines as Topic ; Recurrence ; Seizures, Febrile/blood ; Seizures, Febrile/diagnosis ; Seizures, Febrile/etiology ; Seizures, Febrile/therapy ; Spinal Puncture
    Language English
    Publishing date 1999-04-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 774515-1
    ISSN 1526-3347 ; 0191-9601
    ISSN (online) 1526-3347
    ISSN 0191-9601
    DOI 10.1542/pir.20-8-285
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Interaction between host G3BP and viral nucleocapsid protein regulates SARS-CoV-2 replication

    Yang, Zemin / Johnson, Bryan A. / Meliopoulos, Victoria A. / Ju, Xiaohui / Zhang, Peipei / Hughes, Michael P. / Wu, Jinjun / Koreski, Kaitlin P. / Chang, Ti-Cheng / Wu, Gang / Hixon, Jeff / Duffner, Jay / Wong, Kathy / Lemieux, Rene / Lokugamage, Kumari G. / Alvardo, Rojelio E. / Crocquet-Valdes, Patricia A. / Walker, David H. / Plante, Kenneth S. /
    Plante, Jessica A. / Weaver, Scott C. / Kim, Hong Joo / Meyers, Rachel / Schultz-Cherry, Stacey / Ding, Qiang / Menachery, Vineet D / Taylor, J Paul

    bioRxiv

    Abstract: G3BP1/2 are paralogous proteins that promote stress granule formation in response to cellular stresses, including viral infection. G3BP1/2 are prominent interactors of the nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS- ... ...

    Abstract G3BP1/2 are paralogous proteins that promote stress granule formation in response to cellular stresses, including viral infection. G3BP1/2 are prominent interactors of the nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, the functional consequences of the G3BP1-N interaction in the context of viral infection remain unclear. Here we used structural and biochemical analyses to define the residues required for G3BP1-N interaction, followed by structure-guided mutagenesis of G3BP1 and N to selectively and reciprocally disrupt their interaction. We found that mutation of F17 within the N protein led to selective loss of interaction with G3BP1 and consequent failure of the N protein to disrupt stress granule assembly. Introduction of SARS-CoV-2 bearing an F17A mutation resulted in a significant decrease in viral replication and pathogenesis in vivo, indicating that the G3BP1-N interaction promotes infection by suppressing the ability of G3BP1 to form stress granules.
    Keywords covid19
    Language English
    Publishing date 2023-06-30
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2023.06.29.546885
    Database COVID19

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  8. Article ; Online: Does galactocerebrosidase activity predict Krabbe phenotype?

    Jalal, Kabir / Carter, Randy / Yan, Li / Barczykowski, Amy / Duffner, Patricia K

    Pediatric neurology

    2012  Volume 47, Issue 5, Page(s) 324–329

    Abstract: ... context. Higher galactocerebrosidase activity was predictive of later symptom onset times (P = 0.0011 ... but did not predict survival after symptom onset (P = 0.9064) when controlling for the logarithm of age ...

    Abstract This study sought to determine whether galactocerebrosidase activity is predictive of Krabbe onset age, or of survival from onset when controlling for age at onset of signs. We analyzed data on 55 symptomatic patients from the Hunter James Kelly Research Institute's World-Wide Registry. They were tested for galactocerebrosidase activity at Jefferson Medical College (Philadelphia, PA), using survival models in a path model context. Higher galactocerebrosidase activity was predictive of later symptom onset times (P = 0.0011), but did not predict survival after symptom onset (P = 0.9064) when controlling for the logarithm of age at onset. No child with early infantile (aged 0-6 months) phenotype demonstrated galactocerebrosidase activity >0.1 nmol/hour/mg protein. Survival times within a given phenotype did not vary with galactocerebrosidase activity. Although low galactocerebrosidase activity does not predict phenotype, higher activity in the abnormal range (>0.1 nmol/hour/mg protein in this sample) was not identified in the early infantile variant. Galactocerebrosidase activity may be important to consider when predicting phenotype in the newborn screening population. Our findings provide empiric evidence that the upper end (0.15 nmol/hour/mg protein) of the high-risk galactocerebrosidase group in the New York State newborn screening program is conservatively appropriate.
    MeSH term(s) Age of Onset ; Biomarkers/blood ; Child ; Child, Preschool ; Enzyme Activation/physiology ; Galactosylceramidase/blood ; Humans ; Infant ; Infant, Newborn ; Leukocytes/enzymology ; Leukodystrophy, Globoid Cell/diagnosis ; Leukodystrophy, Globoid Cell/enzymology ; Leukodystrophy, Globoid Cell/genetics ; Phenotype ; Predictive Value of Tests ; Registries ; Survival Rate/trends
    Chemical Substances Biomarkers ; Galactosylceramidase (EC 3.2.1.46)
    Language English
    Publishing date 2012-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 639164-3
    ISSN 1873-5150 ; 0887-8994
    ISSN (online) 1873-5150
    ISSN 0887-8994
    DOI 10.1016/j.pediatrneurol.2012.07.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Molecular profiling of rheumatoid arthritis patients reveals an association between innate and adaptive cell populations and response to anti-tumor necrosis factor.

    Farutin, Victor / Prod'homme, Thomas / McConnell, Kevin / Washburn, Nathaniel / Halvey, Patrick / Etzel, Carol J / Guess, Jamey / Duffner, Jay / Getchell, Kristen / Meccariello, Robin / Gutierrez, Bryan / Honan, Christopher / Zhao, Ganlin / Cilfone, Nicholas A / Gunay, Nur Sibel / Hillson, Jan L / DeLuca, David S / Saunders, Katherine C / Pappas, Dimitrios A /
    Greenberg, Jeffrey D / Kremer, Joel M / Manning, Anthony M / Ling, Leona E / Capila, Ishan

    Arthritis research & therapy

    2019  Volume 21, Issue 1, Page(s) 216

    Abstract: ... in neutrophils, independent of the status of response, was indicated by a high level of correlation (ρ = 0.62; p ... 1.20 [95% CI = 1.03-1.41, p = 0.02]).: Conclusion: Differences in innate/adaptive immune cell ...

    Abstract Background: The goal of this study is to use comprehensive molecular profiling to characterize clinical response to anti-TNF therapy in a real-world setting and identify reproducible markers differentiating good responders and non-responders in rheumatoid arthritis (RA).
    Methods: Whole-blood mRNA, plasma proteins, and glycopeptides were measured in two cohorts of biologic-naïve RA patients (n = 40 and n = 36) from the Corrona CERTAIN (Comparative Effectiveness Registry to study Therapies for Arthritis and Inflammatory coNditions) registry at baseline and after 3 months of anti-TNF treatment. Response to treatment was categorized by EULAR criteria. A cell type-specific data analysis was conducted to evaluate the involvement of the most common immune cell sub-populations. Findings concordant between the two cohorts were further assessed for reproducibility using selected NCBI-GEO datasets and clinical laboratory measurements available in the CERTAIN database.
    Results: A treatment-related signature suggesting a reduction in neutrophils, independent of the status of response, was indicated by a high level of correlation (ρ = 0.62; p < 0.01) between the two cohorts. A baseline, response signature of increased innate cell types in responders compared to increased adaptive cell types in non-responders was identified in both cohorts. This result was further assessed by applying the cell type-specific analysis to five other publicly available RA datasets. Evaluation of the neutrophil-to-lymphocyte ratio at baseline in the remaining patients (n = 1962) from the CERTAIN database confirmed the observation (odds ratio of good/moderate response = 1.20 [95% CI = 1.03-1.41, p = 0.02]).
    Conclusion: Differences in innate/adaptive immune cell type composition at baseline may be a major contributor to response to anti-TNF treatment within the first 3 months of therapy.
    MeSH term(s) Adaptive Immunity/drug effects ; Adaptive Immunity/physiology ; Adult ; Aged ; Antirheumatic Agents/pharmacology ; Antirheumatic Agents/therapeutic use ; Arthritis, Rheumatoid/drug therapy ; Arthritis, Rheumatoid/genetics ; Arthritis, Rheumatoid/immunology ; Cohort Studies ; Female ; Gene Expression Profiling/methods ; Humans ; Immunity, Innate/drug effects ; Immunity, Innate/physiology ; Male ; Middle Aged ; Prospective Studies ; Treatment Outcome ; Tumor Necrosis Factor-alpha/antagonists & inhibitors ; Tumor Necrosis Factor-alpha/immunology
    Chemical Substances Antirheumatic Agents ; Tumor Necrosis Factor-alpha
    Language English
    Publishing date 2019-10-23
    Publishing country England
    Document type Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2107602-9
    ISSN 1478-6362 ; 1478-6354
    ISSN (online) 1478-6362
    ISSN 1478-6354
    DOI 10.1186/s13075-019-1999-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Changes in the approach to central nervous system tumors in childhood.

    Duffner, P K / Cohen, M E

    Pediatric clinics of North America

    1992  Volume 39, Issue 4, Page(s) 859–877

    Abstract: Current approaches to children with brain tumors are in a state of evolution. Currently, 50% of children with all types of brain tumors may be expected to survive 5 years. Therefore, the goals of neuro-oncology have broadened to include improved survival ...

    Abstract Current approaches to children with brain tumors are in a state of evolution. Currently, 50% of children with all types of brain tumors may be expected to survive 5 years. Therefore, the goals of neuro-oncology have broadened to include improved survival and improved quality of life. This article reviews changes in therapy that have altered survival as well as changes in therapy as a consequence of increasing recognition of complications and toxicity of treatment.
    MeSH term(s) Brain/radiation effects ; Brain Diseases/etiology ; Brain Neoplasms/therapy ; Child ; Glioma/therapy ; Humans ; Medulloblastoma/therapy ; Methotrexate/adverse effects ; Radiation Injuries
    Chemical Substances Methotrexate (YL5FZ2Y5U1)
    Language English
    Publishing date 1992-08
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 215711-1
    ISSN 1557-8240 ; 0031-3955
    ISSN (online) 1557-8240
    ISSN 0031-3955
    DOI 10.1016/s0031-3955(16)38378-x
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