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  1. Article ; Online: Differential sensing of sugars by colorimetric arrays.

    Musto, Christopher J / Suslick, Kenneth S

    Current opinion in chemical biology

    2010  Volume 14, Issue 6, Page(s) 758–766

    Abstract: While the complexes between boronic acids and diols have been studied for decades, researchers continue to design new and interesting methods to use these interactions to produce saccharide sensors that are more sensitive and selective. Herein we discuss ...

    Abstract While the complexes between boronic acids and diols have been studied for decades, researchers continue to design new and interesting methods to use these interactions to produce saccharide sensors that are more sensitive and selective. Herein we discuss how the use of pattern-based colorimetric arrays from a collection of crossreactive sensors have been developed as new differential sensing platforms for sugars and related saccharides.
    MeSH term(s) Animals ; Boronic Acids/chemistry ; Carbohydrates/analysis ; Colorimetry/methods ; Humans ; Hydrogen-Ion Concentration ; Oxidation-Reduction
    Chemical Substances Boronic Acids ; Carbohydrates
    Language English
    Publishing date 2010-08-05
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 1439176-4
    ISSN 1879-0402 ; 1367-5931
    ISSN (online) 1879-0402
    ISSN 1367-5931
    DOI 10.1016/j.cbpa.2010.07.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Development of Solid-Phase Site-Specific Conjugation and Its Application toward Generation of Dual Labeled Antibody and Fab Drug Conjugates.

    Puthenveetil, Sujiet / Musto, Sylvia / Loganzo, Frank / Tumey, L Nathan / O'Donnell, Christopher J / Graziani, Edmund

    Bioconjugate chemistry

    2016  Volume 27, Issue 4, Page(s) 1030–1039

    Abstract: The focus of the antibody-drug conjugate (ADC) field is shifting toward development of site-specific, next-generation ADCs to address the issue of heterogeneity, metabolic instability, conjugatability, and less than ideal therapeutic index associated ... ...

    Abstract The focus of the antibody-drug conjugate (ADC) field is shifting toward development of site-specific, next-generation ADCs to address the issue of heterogeneity, metabolic instability, conjugatability, and less than ideal therapeutic index associated with the conventional (heterogeneous) ADCs. It is evident from the recent literature that the site of conjugation, the structure of the linker, and the physicochemical properties of the linker-payload all have a significant impact on the safety and efficacy of the resulting ADCs. Screening multiple linker-payloads on multiple sites of an antibody presents a combinatorial problem that necessitates high-throughput conjugation and purification methodology to identify ADCs with the best combination of site and payload. Toward this end, we developed a protein A/L-based solid-phase, site-specific conjugation and purification method that can be used to generate site-specific ADCs in a 96-well plate format. This solid-phase method has been shown to be versatile because of its compatibility with various conjugation functional handles such as maleimides, haloacetamides, copper free click substrates, and transglutaminase substrates. The application of this methodology was further expanded to generate dual labeled, site-specific antibody and Fab conjugates.
    MeSH term(s) Antibodies/chemistry ; Immunoconjugates/chemistry ; Immunoglobulin Fab Fragments/chemistry
    Chemical Substances Antibodies ; Immunoconjugates ; Immunoglobulin Fab Fragments
    Language English
    Publishing date 2016-04-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1024041-x
    ISSN 1520-4812 ; 1043-1802
    ISSN (online) 1520-4812
    ISSN 1043-1802
    DOI 10.1021/acs.bioconjchem.6b00054
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Novel PIKK inhibitor antibody-drug conjugates: Synthesis and anti-tumor activity.

    Zhou, Dahui / Casavant, Jeffrey / Graziani, Edmund I / He, Haiyin / Janso, Jeffrey / Loganzo, Frank / Musto, Sylvia / Tumey, Nathan / O'Donnell, Christopher J / Dushin, Russell

    Bioorganic & medicinal chemistry letters

    2019  Volume 29, Issue 7, Page(s) 943–947

    Abstract: Novel neolymphostin-based antibody-drug conjugate (ADC) precursors were synthesized either through amide couplings between both cleavable and non-cleavable linkers and neolymphostin derivatives, or through Cu(I)-catalyzed acetylene-azide click ... ...

    Abstract Novel neolymphostin-based antibody-drug conjugate (ADC) precursors were synthesized either through amide couplings between both cleavable and non-cleavable linkers and neolymphostin derivatives, or through Cu(I)-catalyzed acetylene-azide click cycloadditon between non-cleavable linkers and neolymphostin acetal derivatives. These precursors were site-specifically conjugated to cysteine mutant trastuzumab-A114C to provide neolymphostin-based ADCs. Preliminary in vitro data indicated that the corresponding ADCs were active against HER2-expressing tumor cell lines, thus providing a proof-of-concept for using neolymphostin as ADC-based anticancer agents.
    MeSH term(s) Aminoquinolines/chemical synthesis ; Aminoquinolines/pharmacology ; Antineoplastic Agents/chemical synthesis ; Antineoplastic Agents/pharmacology ; Cell Line, Tumor ; Drug Screening Assays, Antitumor ; Humans ; Immunoconjugates/pharmacology ; Mutation ; Phosphoinositide-3 Kinase Inhibitors/chemical synthesis ; Phosphoinositide-3 Kinase Inhibitors/pharmacology ; Proof of Concept Study ; Pyrroles/chemical synthesis ; Pyrroles/pharmacology ; Trastuzumab/genetics ; Trastuzumab/pharmacology
    Chemical Substances Aminoquinolines ; Antineoplastic Agents ; Immunoconjugates ; Phosphoinositide-3 Kinase Inhibitors ; Pyrroles ; Trastuzumab (P188ANX8CK)
    Language English
    Publishing date 2019-01-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 1063195-1
    ISSN 1464-3405 ; 0960-894X
    ISSN (online) 1464-3405
    ISSN 0960-894X
    DOI 10.1016/j.bmcl.2019.01.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: A simple and highly sensitive colorimetric detection method for gaseous formaldehyde.

    Feng, Liang / Musto, Christopher J / Suslick, Kenneth S

    Journal of the American Chemical Society

    2010  Volume 132, Issue 12, Page(s) 4046–4047

    Abstract: A colorimetric detection method using amine-functionalized polymer films doped with a pH indicator has been developed for the rapid, sensitive, and quantitative detection of gaseous formaldehyde at concentrations well below the immediately dangerous to ... ...

    Abstract A colorimetric detection method using amine-functionalized polymer films doped with a pH indicator has been developed for the rapid, sensitive, and quantitative detection of gaseous formaldehyde at concentrations well below the immediately dangerous to life or health (IDLH) limit. In 1 min, visible color changes are easily observed, even down to the permissible exposure limit (PEL) at 750 ppb. The limit of detection is below 50 ppb (7% of the PEL) after 10 min of exposure. This sensor is essentially unaffected by changes in humidity or temperature (4 to 50 degrees C) and is not sensitive to common interferents.
    MeSH term(s) Colorimetry/methods ; Formaldehyde/chemistry ; Gases ; Molecular Structure
    Chemical Substances Gases ; Formaldehyde (1HG84L3525)
    Language English
    Publishing date 2010-03-09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/ja910366p
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Colorimetric detection and identification of natural and artificial sweeteners.

    Musto, Christopher J / Lim, Sung H / Suslick, Kenneth S

    Analytical chemistry

    2010  Volume 81, Issue 15, Page(s) 6526–6533

    Abstract: A disposable, low-cost colorimetric sensor array has been created by pin-printing onto a hydrophilic membrane 16 chemically responsive nanoporous pigments that are comprised of indicators immobilized in an organically modified silane (ormosil). The array ...

    Abstract A disposable, low-cost colorimetric sensor array has been created by pin-printing onto a hydrophilic membrane 16 chemically responsive nanoporous pigments that are comprised of indicators immobilized in an organically modified silane (ormosil). The array has been used to detect and identify 14 different natural and artificial sweeteners at millimolar concentrations, as well as commonly used individual-serving sweetener packets. The array has shown excellent reproducibility and long shelf life and has been optimized to work in the biological pH regime.
    MeSH term(s) Biosensing Techniques ; Colorimetry/instrumentation ; Colorimetry/methods ; Coloring Agents/chemistry ; Electrochemistry ; Image Processing, Computer-Assisted ; Indicators and Reagents/chemistry ; Microarray Analysis ; Principal Component Analysis ; Reproducibility of Results ; Siloxanes/chemistry ; Sweetening Agents/chemistry ; Tea/chemistry
    Chemical Substances Coloring Agents ; Indicators and Reagents ; Siloxanes ; Sweetening Agents ; Tea ; ormosil
    Language English
    Publishing date 2010-03-09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1508-8
    ISSN 1520-6882 ; 0003-2700
    ISSN (online) 1520-6882
    ISSN 0003-2700
    DOI 10.1021/ac901019g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Impact of severe acute respiratory syndrome coronavirus-2 infection on the outcome of primary central nervous system lymphoma treatment: A study of the International PCNSL Collaborative Group.

    Steffanoni, Sara / Calimeri, Teresa / Laurenge, Alice / Fox, Christopher P / Soussain, Carole / Grommes, Christian / Tisi, Maria Chiara / Boot, Jesca / Crosbie, Nicola / Visco, Carlo / Arcaini, Luca / Chaganti, Sridhar / Sassone, Marianna C / Alencar, Alvaro / Armiento, Daniele / Romano, Ilaria / Dietrich, Jorg / Itchaki, Gilad / Bruna, Riccardo /
    Fracchiolla, Nicola S / Arletti, Laura / Venditti, Adriano / Booth, Stephen / Musto, Pellegrino / Hoang Xuan, Khê / Batchelor, Tracy T / Cwynarski, Kate / Ferreri, Andrés J M

    British journal of haematology

    2022  Volume 199, Issue 4, Page(s) 507–519

    Abstract: To optimise management of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection identifying high-risk patients and maintaining treatment dose intensity is an important issue in patients with aggressive lymphomas. In the present study, we ...

    Abstract To optimise management of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection identifying high-risk patients and maintaining treatment dose intensity is an important issue in patients with aggressive lymphomas. In the present study, we report on the presentation, management, and outcome of an international series of 91 patients with primary central nervous system lymphoma and SARS-CoV-2 infection. SARS-CoV-2 was diagnosed before/during first-line treatment in 64 patients, during follow-up in 21, and during salvage therapy in six. Among the 64 patients infected before/during first-line chemotherapy, 38 (59%) developed pneumonia and 26 (41%) did not clear the virus. Prolonged exposure to steroids before viral infection and/or treatment with high-dose cytarabine favoured pneumonia development and virus persistence and were associated with poorer survival; 81% of patients who did not clear virus died early from coronavirus disease 2019 (COVID-19). Vaccination was associated with lower pneumonia incidence and in-hospital mortality. Chemotherapy was initiated/resumed in 43 (67%) patients, more commonly among patients who did not develop pneumonia, cleared the virus, or did not receive steroids during infection. Chemotherapy resumption in patients with viral persistence should be indicated cautiously as it was associated with a poorer survival (6-month, 70% and 87%, p = 0.07). None of the 21 patients infected during follow-up died from COVID-19, requiring similar measures as infected subjects in the general population.
    MeSH term(s) Humans ; COVID-19 ; SARS-CoV-2 ; Central Nervous System ; Lymphoma/drug therapy
    Language English
    Publishing date 2022-08-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80077-6
    ISSN 1365-2141 ; 0007-1048
    ISSN (online) 1365-2141
    ISSN 0007-1048
    DOI 10.1111/bjh.18396
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: GABRA1-Related Disorders: From Genetic to Functional Pathways.

    Musto, Elisa / Liao, Vivian W Y / Johannesen, Katrine M / Fenger, Christina D / Lederer, Damien / Kothur, Kavitha / Fisk, Katrina / Bennetts, Bruce / Vrielynck, Pascal / Delaby, Delphine / Ceulemans, Berten / Weckhuysen, Sarah / Sparber, Peter / Bouman, Arjan / Ardern-Holmes, Simone / Troedson, Christopher / Battaglia, Domenica I / Goel, Himanshu / Feyma, Timothy /
    Bakhtiari, Somayeh / Tjoa, Linda / Boxill, Martin / Demina, Nina / Shchagina, Olga / Dadali, Elena / Kruer, Michael / Cantalupo, Gaetano / Contaldo, Ilaria / Polster, Tilman / Isidor, Bertrand / Bova, Stefania M / Fazeli, Walid / Wouters, Leen / Miranda, Maria J / Darra, Francesca / Pede, Elisa / Le Duc, Diana / Jamra, Rami Abou / Küry, Sébastien / Proietti, Jacopo / McSweeney, Niamh / Brokamp, Elly / Andrews, Peter Ian / Gouray Garcia, Marie / Chebib, Mary / Møller, Rikke S / Ahring, Philip K / Gardella, Elena

    Annals of neurology

    2023  

    Abstract: Objective: Variants in GABRA1 have been associated with a broad epilepsy spectrum, ranging from genetic generalized epilepsies to developmental and epileptic encephalopathies. However, our understanding of what determines the phenotype severity and best ...

    Abstract Objective: Variants in GABRA1 have been associated with a broad epilepsy spectrum, ranging from genetic generalized epilepsies to developmental and epileptic encephalopathies. However, our understanding of what determines the phenotype severity and best treatment options remains inadequate. We therefore aimed to analyze the electroclinical features and the functional effects of GABRA1 variants to establish genotype-phenotype correlations.
    Methods: Genetic and electroclinical data of 27 individuals (22 unrelated and 2 families) harboring 20 different GABRA1 variants were collected and accompanied by functional analysis of 19 variants.
    Results: Individuals in this cohort could be assigned into different clinical subgroups based on the functional effect of their variant and its structural position within the GABRA1 subunit. A homogenous phenotype with mild cognitive impairment and infantile onset epilepsy (focal seizures, fever sensitivity, and electroencephalographic posterior epileptiform discharges) was described for variants in the extracellular domain and the small transmembrane loops. These variants displayed loss-of-function (LoF) effects, and the patients generally had a favorable outcome. A more severe phenotype was associated with variants in the pore-forming transmembrane helices. These variants displayed either gain-of-function (GoF) or LoF effects. GoF variants were associated with severe early onset neurodevelopmental disorders, including early infantile developmental and epileptic encephalopathy.
    Interpretation: Our data expand the genetic and phenotypic spectrum of GABRA1 epilepsies and permit delineation of specific subphenotypes for LoF and GoF variants, through the heterogeneity of phenotypes and variants. Generally, variants in the transmembrane helices cause more severe phenotypes, in particular GoF variants. These findings establish the basis for a better understanding of the pathomechanism and a precision medicine approach in GABRA1-related disorders. Further studies in larger populations are needed to provide a conclusive genotype-phenotype correlation. ANN NEUROL 2023.
    Language English
    Publishing date 2023-08-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80362-5
    ISSN 1531-8249 ; 0364-5134
    ISSN (online) 1531-8249
    ISSN 0364-5134
    DOI 10.1002/ana.26774
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Multivalent peptidic linker enables identification of preferred sites of conjugation for a potent thialanstatin antibody drug conjugate.

    Puthenveetil, Sujiet / He, Haiyin / Loganzo, Frank / Musto, Sylvia / Teske, Jesse / Green, Michael / Tan, Xingzhi / Hosselet, Christine / Lucas, Judy / Tumey, L Nathan / Sapra, Puja / Subramanyam, Chakrapani / O'Donnell, Christopher J / Graziani, Edmund I

    PloS one

    2017  Volume 12, Issue 5, Page(s) e0178452

    Abstract: Antibody drug conjugates (ADCs) are no longer an unknown entity in the field of cancer therapy with the success of marketed ADCs like ADCETRIS and KADCYLA and numerous others advancing through clinical trials. The pursuit of novel cytotoxic payloads ... ...

    Abstract Antibody drug conjugates (ADCs) are no longer an unknown entity in the field of cancer therapy with the success of marketed ADCs like ADCETRIS and KADCYLA and numerous others advancing through clinical trials. The pursuit of novel cytotoxic payloads beyond the mictotubule inhibitors and DNA damaging agents has led us to the recent discovery of an mRNA splicing inhibitor, thailanstatin, as a potent ADC payload. In our previous work, we observed that the potency of this payload was uniquely tied to the method of conjugation, with lysine conjugates showing much superior potency as compared to cysteine conjugates. However, the ADC field is rapidly shifting towards site-specific ADCs due to their advantages in manufacturability, characterization and safety. In this work we report the identification of a highly efficacious site-specific thailanstatin ADC. The site of conjugation played a critical role on both the in vitro and in vivo potency of these ADCs. During the course of this study, we developed a novel methodology of loading a single site with multiple payloads using an in situ generated multi-drug carrying peptidic linker that allowed us to rapidly screen for optimal conjugation sites. Using this methodology, we were able to identify a double-cysteine mutant ADC delivering four-loaded thailanstatin that was very efficacious in a gastric cancer xenograft model at 3mg/kg and was also shown to be efficacious against T-DM1 resistant and MDR1 overexpressing tumor cell lines.
    MeSH term(s) Antineoplastic Agents/administration & dosage ; Antineoplastic Agents/chemistry ; Antineoplastic Agents/pharmacology ; Cell Line, Tumor ; Drug Carriers ; Drug Screening Assays, Antitumor ; Humans ; Immunoconjugates/chemistry ; Peptides/chemistry ; Pyrans/chemistry ; Pyrans/pharmacology
    Chemical Substances Antineoplastic Agents ; Drug Carriers ; Immunoconjugates ; Peptides ; Pyrans
    Language English
    Publishing date 2017
    Publishing country United States
    Document type Journal Article
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0178452
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: A colorimetric sensor array for identification of toxic gases below permissible exposure limits.

    Feng, Liang / Musto, Christopher J / Kemling, Jonathan W / Lim, Sung H / Suslick, Kenneth S

    Chemical communications (Cambridge, England)

    2010  Volume 46, Issue 12, Page(s) 2037–2039

    Abstract: A colorimetric sensor array has been developed for the rapid and sensitive detection of 20 toxic industrial chemicals (TICs) at their PELs (permissible exposure limits). The color changes in an array of chemically responsive nanoporous pigments provide ... ...

    Abstract A colorimetric sensor array has been developed for the rapid and sensitive detection of 20 toxic industrial chemicals (TICs) at their PELs (permissible exposure limits). The color changes in an array of chemically responsive nanoporous pigments provide facile identification of the TICs with an error rate below 0.7%.
    MeSH term(s) Colorimetry/instrumentation ; Gases/analysis ; Limit of Detection
    Chemical Substances Gases
    Language English
    Publishing date 2010-03-28
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/b926848k
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Management of patients with multiple myeloma and COVID-19 in the post pandemic era: a consensus paper from the European Myeloma Network (EMN).

    Terpos, Evangelos / Musto, Pellegrino / Engelhardt, Monika / Delforge, Michel / Cook, Gordon / Gay, Francesca / van de Donk, Niels W C J / Ntanasis-Stathopoulos, Ioannis / Vangsted, Annette Juul / Driessen, Christoph / Schjesvold, Fredrik / Cerchione, Claudio / Zweegman, Sonja / Hajek, Roman / Moreau, Philippe / Einsele, Hermann / San-Miguel, Jesus / Boccadoro, Mario / Dimopoulos, Meletios A /
    Sonneveld, Pieter / Ludwig, Heinz

    Leukemia

    2023  Volume 37, Issue 6, Page(s) 1175–1185

    Abstract: In the post-pandemic COVID-19 period, human activities have returned to normal and COVID-19 cases are usually mild. However, patients with multiple myeloma (MM) present an increased risk for breakthrough infections and severe COVID-19 outcomes, including ...

    Abstract In the post-pandemic COVID-19 period, human activities have returned to normal and COVID-19 cases are usually mild. However, patients with multiple myeloma (MM) present an increased risk for breakthrough infections and severe COVID-19 outcomes, including hospitalization and death. The European Myeloma Network has provided an expert consensus to guide patient management in this era. Vaccination with variant-specific booster vaccines, such as the bivalent vaccine for the ancestral Wuhan strain and the Omicron BA.4/5 strains, is essential as novel strains emerge and become dominant in the community. Boosters should be administered every 6-12 months after the last vaccine shot or documented COVID-19 infection (hybrid immunity). Booster shots seem to overcome the negative effect of anti-CD38 monoclonal antibodies on humoral responses; however, anti-BCMA treatment remains an adverse predictive factor for humoral immune response. Evaluation of the immune response after vaccination may identify a particularly vulnerable subset of patients who may need additional boosters, prophylactic therapies and prevention measures. Pre-exposure prophylaxis with tixagevimab/cilgavimab is not effective against the new dominant variants and thus is no longer recommended. Oral antivirals (nirmatrelvir/ritonavir and molnupiravir) and remdesivir are effective against Omicron subvariants BA.2.12.1, BA.4, BA.5, BQ.1.1 and/or XBB.1.5 and should be administered in MM patients at the time of a positive COVID-19 test or within 5 days post symptoms onset. Convalescent plasma seems to have low value in the post-pandemic era. Prevention measures during SARS-CoV-2 outbreaks, including mask wearing and avoiding crowded places, seem prudent to continue for MM patients.
    MeSH term(s) Humans ; COVID-19/epidemiology ; Multiple Myeloma/therapy ; SARS-CoV-2 ; COVID-19 Serotherapy ; Consensus ; Pandemics ; Antibodies, Neutralizing
    Chemical Substances Antibodies, Neutralizing
    Language English
    Publishing date 2023-05-04
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 807030-1
    ISSN 1476-5551 ; 0887-6924
    ISSN (online) 1476-5551
    ISSN 0887-6924
    DOI 10.1038/s41375-023-01920-1
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