Drug screening against Yellow fever Virus Lucio Freitas Junior - - PowerPoint PPT Presentation

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Drug screening against Yellow fever Virus Lucio Freitas Junior - - PowerPoint PPT Presentation

Drug screening against Yellow fever Virus Lucio Freitas Junior Departamento de Micorbiologia Instituto de Cincias Biomdicas Universidade de So Paulo The Phenotypic Screening Platform at ICB-USP Chemical and Genetic screening


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SLIDE 1

“Drug screening against Yellow fever Virus”

Lucio Freitas Junior

Departamento de Micorbiologia Instituto de Ciências Biomédicas Universidade de São Paulo

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Chemical and Genetic screening

Chagas disease Leishmaniasis Worms Zika Chikungunya Dengue Yellow Fever

Cellular models of disease Phenotypic assays

The Phenotypic Screening Platform at ICB-USP

Secondary assays for hit MoA and target deconvolution

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SLIDE 3

Phenotypic Screening Platform

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SLIDE 4

Screening methodology

Huh7 cels + ZIKV or YFV + compound 72 h incubation at 37 oC and 5% C02 Fixation and labeling of with DAPI and with Anti-Flavivirus antibody Reading Data analysis

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SLIDE 5

Ensaio Hits Lead Pré-clínico Fase I

  • Structure-

Activity Relationship (SAR)

  • In vitro ADME
  • Eficácia in vivo
  • PK/PD
  • Toxicologia

(preliminar)

  • Target ID
  • Eficácia in vivo
  • PK/PD
  • Toxicologia

From ideas to Preclinical Candidates

MEDICINAL CHEMISTRY BIOLOGY DRUG METABOLISM & PHARMACOKINETICS SCREENING LAB

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SLIDE 6

Why is Repurposing import ?

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SLIDE 7

Input Image

YFV

High Content Screening for Yellow fever

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Nuclei Selection

YFV

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SLIDE 9

Cytoplasm Selection

YFV

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Select Population I

YFV

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SLIDE 11

Alexa Intensity

YFV

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SLIDE 12

Infected cells

YFV

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SLIDE 13

FDA for Yellow fever

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SLIDE 14

Screening of a FDA-approved drug library for inhibitors of Y fever virus infection in human cells

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SLIDE 15
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Compound Max activity (%) EC50 (mg/mL) CC50 (mg/mL) S.I. Sofosbuvir 100.07 0.0013 ND 307.665

SOFOSBUVIR

  • 4
  • 2
  • 50

50 100 150

  • 0.5

0.0 0.5 1.0 1.5

log [Cpd], mg/mL

Normalized Activity % Cell Ratio

Yellow fever assay

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SLIDE 17

Compound Max activity (%) EC50 (mg/mL) CC50 (mg/mL) S.I. Harvoni 100.07 0.0002 0.1089 659.04

HARVONI

  • 4
  • 2
  • 50

50 100 150

  • 0.5

0.0 0.5 1.0 1.5

log [Cpd], mg/mL

Normalized Activity % Cell Ratio

Yellow fever assay

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SLIDE 18

Department of Microbiology Luís Carlos de Souza Ferreira Marcia Mayer Gabriel Padilla Paolo Zanotto Edison Durigon Joao Renato Rebello Sergio Schenkman

Phenotypic Screening Platform

Carolina Borsoi Moraes Adalberto Araujo-Junior Caio H. Franco Luisa Naves Laura Alcantara Denise Pilger Rafaela Bonotto Giovana Cintra Bruna Wey

Acknowledgements

luciofreitasjunior@gmail.com