About the Authors

Hadassah Sade

Affiliation Large Molecule Research, Pharma Research and Early Development (pRED), Roche, Penzberg, Germany

Claudia Baumgartner

Affiliation Large Molecule Research, Pharma Research and Early Development (pRED), Roche, Penzberg, Germany

Adrian Hugenmatter

Affiliation Large Molecule Research, Pharma Research and Early Development (pRED), Roche, Schlieren, Switzerland

Ekkehard Moessner

Affiliation Large Molecule Research, Pharma Research and Early Development (pRED), Roche, Schlieren, Switzerland

Per-Ola Freskgård

Affiliation Neuroscience Discovery and Translation Area, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche, Basel, Switzerland

Jens Niewoehner

jens.niewoehner@roche.com

Affiliation Large Molecule Research, Pharma Research and Early Development (pRED), Roche, Penzberg, Germany

Competing Interests

The authors have read the journal's policy and have the following conflicts: All authors are paid employees of Roche affiliates, whose company funded this study. There are no products in development or marketed products to declare. Part of the data described in the paper are included in the patent application: "Method and Constructs for the pH Dependent Passage of the Blood-brain-barrier", US20120282176. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JN HS AH EM POF. Performed the experiments: HS CB. Analyzed the data: HS JN CB. Wrote the paper: HS JN.