Natural product-derived antiviral therapy against chikungunya (CHIKV) and Zika (ZIKV) viruses: Casuarinin, a hydrolyzable tannin isolated from the bark of Terminalia arjuna Linn. (Combretaceae), decreases spermidine/spermine N1-acetyltransferase (SAT) expression, depletes spermidine and Spermine levels, and restricts Chikungunya and Zika viruses replication via up regulation of its target gene, 6/February/2017, 9.59 pm

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Introduction: What they say

A study from the Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25–28 rue du Dr. Roux, 75724 Paris Cedex 15, France shows that “Interferon-Induced Spermidine-Spermine Acetyltransferase and Polyamine Depletion Restrict Zika and Chikungunya Viruses.”  This research paper was published in the 10 August 2016 issue of the journal “Cell Host and microbe” [One of the best research journals  in Infectious biology with an I.F of 12.552] by Prof. Marco Vignuzzi, Bryan C. Mounce and others.


What we say

On the foundation of this interesting finding, Dr L Boominathan PhD, Director-cum-chief Scientist of GBMD, reports, for the first time, a Natural product-derived antiviral therapy against chikungunya (CHIKV) and Zika (ZIKV) viruses. Casuarinin, a hydrolyzable tannin isolated from the bark of Terminalia arjuna Linn. (Combretaceae),  decreases spermidine/spermine N1-acetyltransferase (SAT) expression, depletes spermidine and Spermine levels, and restricts Chikungunya and Zika viruses replication via up regulation of its target gene


What is known?

Prof. Marco Vignuzzi’s research team has recently shown that induction of type I interferon results in: a) upregulation of SAT1; b) depletion of spermidine and spermine levels; and c) inhibition of Chikungunya and Zika viruses production. They have further validated this by showing that exogenous administration of Polyamines (spermidine and spermine) restores virus replication.


From Research findings to Therapeutic opportunity:

This study suggests, for the first time, a natural product-based antiviral therapy against RNA viruses such as Chikungunya virus (CHIKV) and Zika virus (ZIKV).

price-300[easy_payment currency=”USD”]

Casuarinin, by increasing the expression of its target gene, it may increase the expression of spermidine/spermine N1-acetyltransferase (SAT1) (Figures 1 -3). Thereby, it may: (1) decrease polyamine spermidine and spermine levels; (2) stall CHIKV and ZIKV replication; (3) promote clearance of Zika and Chikungunya Viruses; and (4) strengthen antiviral immunity against RNA viruses.

Image

Fig 1 Terminalia Arjuna – Combretaceae inhibits the replication of Chikungunya and Zika viruses

Casuarinin க்கான பட முடிவு

Figure 2. Casuarinin functions as an antiviral agent

Thus, pharmacological formulations encompassing “Casuarinin or its analogs or Casuarinin plus any of the known antiviral compounds” may be used to treat infections caused by chikungunya (CHIKV) and Zika (ZIKV) viruses.


Details of the research findings:

Idea Proposed/Formulated (with experimental evidence) by: Dr L Boominathan Ph.D.

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Undisclosed information: How does Casuarinin decrease the expression of spermidine/spermine N1-acetyltransferase (SAT1)?

Amount: $300

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References:

Web: http://genomediscovery.org or http://newbioideas.com

Citation: Boominathan, L., Natural product-derived antiviral therapy against chikungunya (CHIKV) and Zika (ZIKV) viruses: Casuarinin, a hydrolyzable tannin isolated from the bark of Terminalia arjuna Linn. (Combretaceae), decreases spermidine/spermine N1-acetyltransferase (SAT) expression, depletes spermidine and Spermine levels, and restricts Chikungunya and Zika viruses replication via up regulation of its target gene, 6/February/2017, 9.59 pm, Genome-2-Bio-Medicine Discovery center (GBMD), http://genomediscovery.org

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