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@ARTICLE{Rehborg2023-mj,
title = "Mapping resistance-associated anthelmintic interactions in the
model nematode Caenorhabditis elegans",
author = "Rehborg, Elena G and Wheeler, Nicolas J and Zamanian, Mostafa",
abstract = "Parasitic nematodes infect billions of people and are mainly
controlled by anthelmintic mass drug administration (MDA). While
there are growing efforts to better understand mechanisms of
anthelmintic resistance in human and animal populations, it is
unclear how resistance mechanisms that alter susceptibility to
one drug affect the interactions and efficacy of drugs used in
combination. Mutations that alter drug permeability across
primary nematode barriers have been identified as potential
resistance mechanisms using the model nematode Caenorhabditis
elegans . We leveraged high-throughput assays in this model
system to measure altered anthelmintic susceptibility in response
to genetic perturbations of potential cuticular, amphidial, and
alimentary routes of drug entry. Mutations in genes associated
with these tissue barriers differentially altered susceptibility
to the major anthelmintic classes (macrocyclic lactones,
benzimidazoles, and nicotinic acetylcholine receptor agonists) as
measured by animal development. We investigated two-way
anthelmintic interactions across C. elegans genetic backgrounds
that confer resistance or hypersensitivity to one or more drugs.
We observe that genetic perturbations that alter susceptibility
to a single drug can shift the drug interaction landscape and
lead to the appearance of novel synergistic and antagonistic
interactions. This work establishes a framework for investigating
combinatorial therapies in model nematodes that can potentially
be translated to amenable parasite species.",
journal = "PLoS Negl. Trop. Dis.",
volume = 17,
number = 10,
pages = "e0011674",
month = oct,
year = 2023,
@ARTICLE{Mian2024-gs,
title = "Development of non-sedating antischistosomal benzodiazepines",
author = "Mian, Md Yeunus and Sharmin, Dishary and Mondal, Prithu and
Belayet, Jawad Bin and Mahmun Hossain, M and McCusker, Paul and
Ryan, Kaetlyn T and Fedorov, Alexander Y and Green, Heather A and
Ericksen, Spencer S and Zamanian, Mostafa and Phani Babu
Tiruveedhula, V V and Cook, James M and Chan, John D",
abstract = "The neglected tropical disease schistosomiasis infects over 200
million people worldwide and is treated with just one broad
spectrum antiparasitic drug (praziquantel). Alternative drugs are
needed in the event of emerging praziquantel resistance or
treatment failure. One promising lead that has shown efficacy in
animal models and a human clinical trial is the benzodiazepine
meclonazepam, discovered by Roche in the 1970's. Meclonazepam was
not brought to market because of dose-limiting sedative side
effects. However, the human target of meclonazepam that causes
sedation (GABAARs) are not orthologous to the parasite targets
that cause worm death. Therefore, we were interested in whether
the structure of meclonazepam could be modified to produce
antiparasitic benzodiazepines that do not cause host sedation. We
synthesized 18 meclonazepam derivatives with modifications at
different positions on the benzodiazepine ring system and tested
them for in vitro antiparasitic activity. This identified five
compounds that progressed to in vivo screening in a murine model,
two of which cured parasite infections with comparable potency to
meclonazepam. When these two compounds were administered to mice
that were run on the rotarod test, both were less sedating than
meclonazepam. These findings demonstrate the proof of concept
that meclonazepam analogs can be designed with an improved
therapeutic index, and point to the C3 position of the
benzodiazepine ring system as a logical site for further
structure-activity exploration to further optimize this chemical
series. \#\#\# Competing Interest Statement The authors have
declared no competing interest.",
journal = "bioRxiv",
pages = "2024.01.26.577323",
month = jan,
year = 2024,
keywords = "Zamanian Papers",
language = "en",
issn = "1935-2727, 1935-2735",
pmid = "37782672",
doi = "10.1371/journal.pntd.0011674",
pmc = "PMC10569609",
pdf = {Rehborg et al. 2023 - Mapping resistance-associated anthelmintic interactions in the model nematode Caenorhabditis elegans.pdf},
preview = {Rehborg et al. 2023 - Mapping resistance-associated anthelmintic interactions in the model nematode Caenorhabditis elegans.jpeg},
github = {AnthelminticInteractions-ms}
doi = "10.1101/2024.01.26.577323",
pdf = {Mian et al. 2024 - Development of non-sedating antischistosomal benzodiazepines.pdf},
preview = {Mian et al. 2024 - Development of non-sedating antischistosomal benzodiazepines.jpeg}
}

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