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Early Research Suggests Antibiotics May Be Effective in One Form of Dementia – MedicalResearch.com

January 20th, 2020 5:44 am

MedicalResearch.com Interview with:

Haining Zhu, PhDDepartment of Molecular and Cellular BiochemistryUniversity of Kentucky, Lexington, Kentucky

MedicalResearch.com: What is the background for this study?

Response: Frontotemporal dementia is the most common type of early onset dementia impacting people between ages 40 and 65. It affects the frontal and temporal lobes of the brain, which leads to behavior and personality changes, difficulty speaking and writing, and eventual memory deterioration.

A subgroup of patients with frontotemporal dementia have a specific genetic mutation that prevents brain cells from making a protein called progranulin. Although progranulin is not wellunderstood, its absence is linked to the disease.

MedicalResearch.com: What are the main findings?

Response: Our research team discovered that after aminoglycoside antibiotics (Gentamicin and G418) were added to neuronal cells with this mutation, the cells started making the full-length progranulin protein by skipping the mutation.

MedicalResearch.com: What should readers take away from your report?

Response: These results could be promising to drug development. Currently, there are no effective therapies for any type of dementia.This is an early stage of the study, but it provides an important proof of concept that these aminoglycoside antibiotics or their derivatives can be a therapeutic avenue for frontotemporal dementia.

MedicalResearch.com: What recommendations do you have for future research as a result of this work?

Response: After this preclinical proof of concept study, the next step is to study the antibiotics effects on mice with the mutation that causes frontotemporal dementia.If we can get the right resources and physician to work with, we could potentially repurpose the FDA-approved drug gentamicin. However, theclinical usageof Gentamicinis limited as it is associated with a number of adverse side effects. Another focus is to possibly develop new compounds from Gentamicin and G418 that could be safer and more effective.

Disclosure: A patent application based on the above results has been filed.

Citation:

Lisha Kuang, Kei Hashimoto, Eric J Huang, Matthew S Gentry, Haining Zhu.Frontotemporal dementia nonsense mutation of progranulin rescued by aminoglycosides.Human Molecular Genetics, 2020; DOI:10.1093/hmg/ddz280

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Last Modified: Jan 15, 2020 @ 4:36 pm

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