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Published on: September 27, 2018
ACANTHAMOEBA SP.S-11 PHAGOCYTOTIC ACTIVITY ON MYCOBACTERIUM LEPRAE IN DIFFERENT NUTRIENT CONDITIONS
Sepling Paling1, Ratna Wahyuni2, Ni'matuzahroh1
1Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia.
Background:
Mycobacterium leprae (M. leprae) is a pathogenic bacterium that causes leprosy. The presence of M. leprae in the environment is supported by microorganisms that act as the new host for M. leprae. Acanthamoeba's potential to be a host of M. leprae in the environment. Acanthamoeba sp. is Free Living Amoeba (FLA) that classified as holozoic, saprophytic, and saprozoic. The existence of nutrients in the environment influence Acanthamoeba ability to phagocytosis or pinocytosis. This study is aimed to determine Acanthamoeba sp.S-11 phagocytic activity to Mycobacterium leprae (M. leprae) which cultured in non-nutrient media and riched-nutrient media.
Materials And Methods:
This research conducted by culturing Acanthamoeba sp.S-11 and M. leprae on different nutrient media conditions. M. leprae intracellular DNA were isolated and amplified by M. leprae specific primers through Real Time PCR (Q-PCR).
Result:
The results showed that Acanthamoeba co-cultured on non-nutrient media were more active to phagocyte M. leprae than on rich-nutrient media.
Conclusion:
The use of non-nutrient media is recommended to optimize Acanthamoeba sp. phagocytic activity to M. leprae.
Insights
Non-nutrient media enhances Acanthamoeba phagocytic activity against Mycobacterium leprae. This finding suggests optimizing culture conditions for studying leprosy transmission dynamics.
Area of Science:
- Microbiology
- Environmental Science
- Infectious Diseases
Background:
- Mycobacterium leprae causes leprosy and can persist in the environment via microbial hosts.
- Acanthamoeba, a Free-Living Amoeba (FLA), is a potential environmental host for M. leprae.
- Nutrient availability influences Acanthamoeba's phagocytic capabilities.
Purpose of the Study:
- To investigate the phagocytic activity of Acanthamoeba sp.S-11 towards Mycobacterium leprae.
- To compare phagocytosis rates under non-nutrient and rich-nutrient media conditions.
Main Methods:
- Culturing Acanthamoeba sp.S-11 and M. leprae on distinct nutrient media.
- Isolating and amplifying M. leprae intracellular DNA using Real-Time PCR (Q-PCR).
Main Results:
- Acanthamoeba exhibited higher phagocytic activity towards M. leprae when cultured on non-nutrient media.
- Rich-nutrient media resulted in lower phagocytosis rates compared to non-nutrient media.
Conclusions:
- Non-nutrient media is recommended for optimizing Acanthamoeba sp. phagocytic activity against M. leprae.
- This approach may be crucial for understanding environmental M. leprae reservoirs and transmission.
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