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Updated: Jun 19, 2026

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Published on: October 29, 2015
Inhibition of viral carcinogenesis by Phyllanthus amarus
Kuzhuvelil B Harikumar1, Girija Kuttan, Ramadasan Kuttan
1Amala Cancer Research Centre, Amala Nagar, Thrissur, Kerala, India. kbharikumar@gmail.com
Abstract:
Friend murine leukemia virus (FMuLv) is an acutely oncogenic retrovirus, and its infection leads to erythroblastosis and leukemia in mice. This infection model is used in the search for new antiviral agents. In the present study, the authors have evaluated the potential of an extract of Phyllanthus amarus against FMuLv-induced erythroleukemia in BALB/c mice. Injection of newborn mice with FMuLv resulted in leukemia and animals died due to splenomegaly. Oral administration of P.amarus was found to enhance the life span of leukemia-harboring animals and decrease the incidence of anemia. The authors also performed a series of hematological, biochemical, histopathological, and gene expression analyses to evaluate the effect of P.amarus administration on erythroleukemia initiation and progression. The data obtained indicate that P.amarus administration could significantly decrease the progression of erythroleukemia. Treatment with P.amarus induced the expression of p53 and p45NFE2 and decreased the expression of Bcl-2 in the spleen of infected mice. Histopathological evaluations of the spleen demonstrated that administration of P.amarus decreased the infiltration of leukemic cells into the sinusoidal space when compared with the vehicle treated group. P.amarus is known to inhibit chemically induced neoplasm in different rodent models.The current results indicate that P.amarus has the ability to suppress virally induced cancers as well.
Insights
Phyllanthus amarus extract extended survival and reduced anemia in mice with Friend murine leukemia virus (FMuLv)-induced erythroleukemia. This natural compound suppressed viral cancer progression by modulating key gene expressions.
Area of Science:
- Oncology
- Virology
- Pharmacology
Background:
- Friend murine leukemia virus (FMuLv) causes erythroblastosis and leukemia in mice, serving as a model for antiviral research.
- Phyllanthus amarus is a plant with known anti-cancer properties in chemically induced models.
Purpose of the Study:
- To evaluate the efficacy of Phyllanthus amarus extract against FMuLv-induced erythroleukemia in BALB/c mice.
- To assess the impact of Phyllanthus amarus on leukemia progression, survival rates, and anemia.
Main Methods:
- BALB/c mice were infected with FMuLv and treated with Phyllanthus amarus extract.
- Evaluations included hematological, biochemical, histopathological, and gene expression analyses.
- Specific focus on spleen tissue to assess leukemic cell infiltration and molecular changes.
Main Results:
- Phyllanthus amarus administration significantly enhanced lifespan and decreased anemia in FMuLv-infected mice.
- The extract reduced the progression of erythroleukemia and leukemic cell infiltration in the spleen.
- Gene expression analysis showed increased p53 and p45NFE2, and decreased Bcl-2 in treated mice.
Conclusions:
- Phyllanthus amarus extract demonstrates significant potential in suppressing virally induced erythroleukemia.
- The findings suggest Phyllanthus amarus can inhibit viral oncogenesis, expanding its therapeutic relevance.
- This study supports Phyllanthus amarus as a candidate for further investigation in antiviral and anti-cancer therapies.
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