Improvement of anti-prion efficacy with stearoxy conjugation of hydroxypropyl methylcellulose in prion-infected mice.

Carbohydr Polym

Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; Faculty of Medical Science & Welfare, Tohoku Bunka Gakuen University, Sendai, Miyagi, Japan. Electronic address:

Published: August 2024

AI Article Synopsis

  • Prion diseases are deadly neurodegenerative disorders that can be transmitted, and hydroxypropyl methylcellulose compounds (HPMCs) show promise as anti-prion agents.
  • Stearoxy-modified HPMCs enhanced anti-prion effects in infected cells and extended the incubation time in certain mouse models.
  • However, in mouse models that already responded well to HPMCs, the stearoxy modification didn't provide additional benefits, suggesting a new approach for less responsive cases.

Article Abstract

Prion diseases are fatal transmissible neurodegenerative disorders. Among known anti-prions, hydroxypropyl methylcellulose compounds (HPMCs) are unique in their chemical structure and action. They have several excellent anti-prion properties but the effectiveness depends on the prion-infected mouse model. In the present study, we investigated the effects of stearoxy-modified HPMCs on prion-infected cells and mice. Stearoxy modification improved the anti-prion efficacy of HPMCs in prion-infected cells and significantly prolonged the incubation period in a lower HPMC-responding mouse model. However, stearoxy modification showed no improvement over nonmodified HPMCs in an HPMC-responding mouse model. These results offer a new line of inquiry for use with prion-infected mice that do not respond well to HPMCs.

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Source
http://dx.doi.org/10.1016/j.carbpol.2024.122163DOI Listing

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