Harmine enhances the activity of the HIV-1 latency-reversing agents ingenol A and SAHA.
Harmine enhances the activity of the HIV-1 latency-reversing agents ingenol A and SAHA.
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DOI:
10.1242/bio.052969
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发表时间:
2020-12-21
期刊:
影响因子:
2.4
通讯作者:
Wallet MA
中科院分区:
文献类型:
--
作者:
Taylor JP;Armitage LH;Aldridge DL;Cash MN;Wallet MA
Infection with human immunodeficiency virus 1 (HIV-1) remains incurable because long-lived, latently-infected cells persist during prolonged antiretroviral therapy. Attempts to pharmacologically reactivate and purge the latent reservoir with latency reactivating agents (LRAs) such as protein kinase C (PKC) agonists (e.g. ingenol A) or histone deacetylase (HDAC) inhibitors (e.g. SAHA) have shown promising but incomplete efficacy. Using the J-Lat T cell model of HIV latency, we found that the plant-derived compound harmine enhanced the efficacy of existing PKC agonist LRAs in reactivating latently-infected cells. Treatment with harmine increased not only the number of reactivated cells but also increased HIV transcription and protein expression on a per-cell basis. Importantly, we observed a synergistic effect when harmine was used in combination with ingenol A and the HDAC inhibitor SAHA. An investigation into the mechanism revealed that harmine, when used with LRAs, increased the activity of NFκB, MAPK p38, and ERK1/2. Harmine treatment also resulted in reduced expression of HEXIM1, a negative regulator of transcriptional elongation. Thus, harmine enhanced the effects of LRAs by increasing the availability of transcription factors needed for HIV reactivation and promoting transcriptional elongation. Combination therapies with harmine and LRAs could benefit patients by achieving deeper reactivation of the latent pool of HIV provirus. Summary: The plant-derived compound harmine shows efficacy in enhancing the effects of existing HIV latency-reversing drugs.
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DOI:
10.1097/qad.0b013e32832ec1dc
发表时间:
2009-09-10
期刊:
AIDS (London, England)
影响因子:
--
作者:
Archin NM;Keedy KS;Espeseth A;Dang H;Hazuda DJ;Margolis DM
通讯作者:
Margolis DM
影响因子:
4.6
作者:
Díaz L;Martínez-Bonet M;Sánchez J;Fernández-Pineda A;Jiménez JL;Muñoz E;Moreno S;Álvarez S;Muñoz-Fernández MÁ
通讯作者:
Muñoz-Fernández MÁ
影响因子:
64.8
作者:
Arron, Joseph R.;Winslow, Monte M.;Crabtree, Gerald R.
通讯作者:
Crabtree, Gerald R.
影响因子:
5.5
作者:
Banerjee, Camellia;Archin, Nancie;Montano, Monty
通讯作者:
Montano, Monty
影响因子:
1.5
作者:
Archin, Nancie M.;Espeseth, Amy;Margolis, David M.
通讯作者:
Margolis, David M.