Publications associées à Mélanine

More Than Black or White: Melanization and Toll Share Regulatory Serine Proteases in Drosophila

Bruno Lemaitre, Jan Paul Dudzic, Mark Austin Hanson, Igor Iatsenko

The melanization response is an important defense mechanism in arthropods. This reaction is mediated by phenoloxidases (POs), which are activated by complex extracellular serine protease (SP) cascades. Here, we investigate the role of SPs in the melanizati ...

CELL PRESS2019

From the Cover: Zebrafish Larvae Are Insensitive to Stimulation by Cocaine: Importance of Exposure Route and Toxicokinetics

Kristin Schirmer, Julita Maria Stadnicka-Michalak

Zebrafish (Danio rerio) larvae have been suggested as vertebrate model to complement or even replace mammals for rapidly assessing behavioral effects of psychoactive drugs. Yet, divergent responses have been reported in mammals and fish despite the conserv ...

Oxford Univ Press2016

Micro- and nanoscale hierarchical structure of core-shell protein microgels

Giovanni Dietler, Francesco Simone Ruggeri, Raffaele Mezzenga

Protein nanofibrils were first discovered in the context of misfolding and neurodegenerative diseases but have recently been found in naturally occurring functional materials including algal adhesives, bacterial coatings, and even mammalian melanosomes. Th ...

Royal Soc Chemistry2016

Multiple scanning electrochemical microscopy mapping of tyrosinase in micro-contact printed fruit samples on polyvinylidene fluoride membrane

Hubert Girault, Andreas Stephan Lesch, Liang Qiao, Fernando Cortes Salazar, Tzu-En Lin, Alexandra Bondarenko

Herein, we introduce three orthogonal and compatible methods for detecting tyrosinase, a key factor in fruit browning and skin disorders, with high spatial resolution by means of scanning electrochemical microscopy (SECM). All methods are performed subsequ ...

Elsevier2015

The Black cells phenotype is caused by a point mutation in the Drosophila pro-phenoloxidase 1 gene that triggers melanization and hematopoietic defects

Bruno Lemaitre, Maroun Bou Sleiman, Olivier Binggeli, Lise Bertin

Melanization contributes to arthropod-specific innate immunity through deposition of melanin at wound sites or around parasites, with concomitant release of microbicidal reactive oxygen species. Melanization requires sequential activation of proteolytic en ...

Elsevier2015

Drosophila innate immunity: regional and functional specialization of prophenoloxidases

Bruno Lemaitre, Jan Paul Dudzic

The diversification of immune systems during evolution involves the expansion of particular gene families in given phyla. A better understanding of the metazoan immune system requires an analysis of the logic underlying such immune gene amplification. This ...

BioMed Central2015

Prophenoloxidase Activation Is Required for Survival to Microbial Infections in Drosophila

Bruno Lemaitre, Olivier Binggeli

The melanization reaction is a major immune response in Arthropods and involves the rapid synthesis of melanin at the site of infection and injury. A key enzyme in the melanization process is phenoloxidase (PO), which catalyzes the oxidation of phenols to ...

Public Library of Science2014

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

Philippe Renaud, David Vincent Bonzon, Rodrigo Martinez Duarte

iomimetics often provides efficient ways to create a product incorporating novel properties. Here we present the replication of the Pieris rapae butterfly optical structure. This butterfly has white wings with black spots. The white coloration is produced ...

MDPI2014

What impacts skin color in digital photos?

Albrecht Johannes Lindner, Stefan Winkler

Skin colors are important for a broad range of imaging applications to assure quality and naturalness. We discuss the impact of various metadata on skin colors in images, i.e. how does the presence of a metadata attribute influence the expected skin color ...

2014

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Mélanine

More Than Black or White: Melanization and Toll Share Regulatory Serine Proteases in Drosophila

The melanization reaction in Drosophila: More than black or white

From the Cover: Zebrafish Larvae Are Insensitive to Stimulation by Cocaine: Importance of Exposure Route and Toxicokinetics

Micro- and nanoscale hierarchical structure of core-shell protein microgels

Multiple scanning electrochemical microscopy mapping of tyrosinase in micro-contact printed fruit samples on polyvinylidene fluoride membrane

The Black cells phenotype is caused by a point mutation in the Drosophila pro-phenoloxidase 1 gene that triggers melanization and hematopoietic defects

Drosophila innate immunity: regional and functional specialization of prophenoloxidases

Prophenoloxidase Activation Is Required for Survival to Microbial Infections in Drosophila

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

What impacts skin color in digital photos?

Graph Chatbot

Chattez avec Graph Search

The melanization reaction in Drosophila: More than black or white

Micro- and nanoscale hierarchical structure of core-shell protein microgels

Drosophila innate immunity: regional and functional specialization of prophenoloxidases

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

Prophenoloxidase Activation Is Required for Survival to Microbial Infections in Drosophila

More Than Black or White: Melanization and Toll Share Regulatory Serine Proteases in Drosophila

Multiple scanning electrochemical microscopy mapping of tyrosinase in micro-contact printed fruit samples on polyvinylidene fluoride membrane

The Black cells phenotype is caused by a point mutation in the Drosophila pro-phenoloxidase 1 gene that triggers melanization and hematopoietic defects