期刊
DRUG DEVELOPMENT RESEARCH
卷 83, 期 2, 页码 225-252出版社
WILEY
DOI: 10.1002/ddr.21664
关键词
clinical trial; CRISPR-Cas9 systems; drug discovery; leishmaniasis; neglected diseases; trypanosomiasis
资金
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [424729/2018-0]
- Fundac~ao de Amparo a Pesquisa do Estado de Sao Paulo [2018/09948-0]
- Natural Sciences and Engineering Research Council of Canada [DGECR2019-00081, RGPIN-2019-04658]
Human trypanosomiasis and leishmaniasis, caused by protozoan parasites, have become globally distributed tropical diseases due to human migration, climate change, and anthropogenic disturbance. The current chemotherapy for these diseases has limited efficacy and drug resistance is a growing concern. This review discusses the limitations of available drugs and highlights promising leads from current drug-based clinical trials. It also examines the challenges in target-based drug discovery and the advantages and limitations of modern research tools.
Human trypanosomiasis and leishmaniasis are vector-borne neglected tropical diseases caused by infection with the protozoan parasitesTrypanosomaspp. andLeishmaniaspp., respectively. Once restricted to endemic areas, these diseases are now distributed worldwide due to human migration, climate change, and anthropogenic disturbance, causing significant health and economic burden globally. The current chemotherapy used to treat these diseases has limited efficacy, and drug resistance is spreading. Hence, new drugs are urgently needed. Phenotypic compound screenings have prevailed as the leading method to discover new drug candidates against these diseases. However, the publication of the complete genome sequences of multiple strains, advances in the application of CRISPR/Cas9 technology, and in vivo bioluminescence-based imaging have set the stage for advancing target-based drug discovery. This review analyses the limitations of the narrow pool of available drugs presently used for treating these diseases. It describes the current drug-based clinical trials highlighting the most promising leads. Furthermore, the review presents a focused discussion on the most important biological and pharmacological challenges that target-based drug discovery programs must overcome to advance drug candidates. Finally, it examines the advantages and limitations of modern research tools designed to identify and validate essential genes as drug targets, including genomic editing applications and in vivo imaging.
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