Article (Scientific journals)
Non-cytotoxic 1,2,3-triazole tethered fused heterocyclic ring derivatives display Tax protein inhibition and impair HTLV-1 infected cells
dos Santos, Daiane Fernanda; Bairros de Pilger, Denise Regina; Vandermeulen, Charlotte et al.
2020In Bioorganic and Medicinal Chemistry, 28, p. 115746
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Keywords :
HTLV-1; ATL; Compound screening; Cell proliferation; Apoptosis; Tax protein
Abstract :
[en] Human T cell lymphotropic virus type 1 (HTLV-1) is a human retrovirus that infects approximately 10–20 million people worldwide and causes an aggressive neoplasia (adult T-cell leukemia/lymphoma - ATL). Therapeutic approaches for the treatment of ATL have variable effectiveness and poor prognosis, thus requiring strategies to identify novel compounds with activity on infected cells. In this sense, we initially screened a small series of 25 1,2,3-triazole derivatives to discover cell proliferation inhibitors and apoptosis inducers in HTLV-1- infected T-cell line (MT-2) for further assessment of their effect on viral tax activity through inducible-tax reporter cell line (Jurkat LTR-GFP). Eight promising compounds (02, 05, 06, 13, 15, 21, 22 and 25) with activity ≥70% were initially selected, based on a suitable cell-based assay using resazurin reduction method, and evaluated towards cell cycle, apoptosis and Tax/GFP expression analyses through flow cytometry. Compound 02 induced S phase cell cycle arrest and compounds 05, 06, 22 and 25 promoted apoptosis. Remarkably, compounds 22 and 25 also reduced GFP expression in an inducible-tax reporter cell, which suggests an effect on Tax viral protein. More importantly, compounds 02, 22 and 25 were not cytotoxic in human hepatoma cell line (Huh-7). Therefore, the discovery of 3 active and non-cytotoxic compounds against HTLV-1-infected cells can potentially contribute, as an initial promising strategy, to the development process of new drugs against ATL.
Disciplines :
Author, co-author :
dos Santos, Daiane Fernanda
Bairros de Pilger, Denise Regina
Vandermeulen, Charlotte
Khouri, Ricardo
Pedersoli Mantoani, Susimaire
Gonçalves Nunes, Paulo Sérgio
de Andrade, Peterson
Carvalho, Ivone
Casseb, Jorge
Twizere, Jean-Claude  ;  Université de Liège - ULiège > GIGA Molecul. Bio. of Diseases - Viral Interactomes Network
Willems, Luc  ;  Université de Liège - ULiège > GIGA Cancer - Cellular and Molecular Epigenetics
Freitas-Junior, Lucio
Kashima, Simone
More authors (3 more) Less
Language :
Title :
Non-cytotoxic 1,2,3-triazole tethered fused heterocyclic ring derivatives display Tax protein inhibition and impair HTLV-1 infected cells
Publication date :
08 September 2020
Journal title :
Bioorganic and Medicinal Chemistry
Publisher :
Elsevier, United Kingdom
Volume :
Pages :
Peer reviewed :
Peer Reviewed verified by ORBi
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since 25 May 2021


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