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Antibacterial, Anti-Chlamydial, and Cytotoxic Activities of a Marine Snail (Hexaplex trunculus) Phospholipase A2: an In Vitro Study

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Abstract

In order to report pharmacological characterization of marine snail (Hexaplex trunculus) hepatopancreatic phospholipase A2 (mSDPLA2), we have talked for the first time the antimicrobial activity against different pathogenic bacterial strains, anti-chlamydial activity as well as its cytotoxic activity against McCoy cell lines. mSDPLA2, showed a high level of activity towards Gram-positive bacteria as Staphylococcus aureus and Staphylococcus epidermidis. Whereas Gram-negative bacteria, unfortunately, exhibited a higher resistance, mSDPLA2 was also found to have a strong cytotoxic activity, causing significant morphological alterations of the McCoy cell lines surfaces and to be a hinder to the proliferation. Moreover, mSDPLA2 proved to have a very potent anti-chlamydial activity. Over 95 % inhibition of chlamydial inclusions were obtained at a concentration of 10 μg/ml of mSDPLA2 after 24 h postinfection. Interestingly, at a concentration of 10 μg/ml of mSDPLA2, the proliferation of McCoy cells was not affected. Approximately 50 % inhibition of cell growth was obtained with a concentration of 37 μg/mL of mSDPLA2. mSDPLA2 could be considered as an excellent candidate for the development of a new anti-infective agent. This enzyme showed significant antimicrobial activities.

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Abbreviations

mSDPLA2 :

Marine snail digestive phospholipase A2

PBS:

Phosphate-buffered saline

FBS:

Fetal bovine serum

MIC:

Minimal inhibitory concentration

MTT:

3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium bromide

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Acknowledgments

This work is part of a doctoral thesis by Zied Zarai. This work received financial support from “Ministère de l’enseignement supérieur et de la recherche” granted to the “Laboratoire de Biochimie et de Génie Enzymatique des Lipases”. The authors are indebted to Professor Mr. Riadh Koubaa from the “OPEN School Center” for languages, Sfax, Tunisia, for correcting the manuscript.

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Authors and Affiliations

  1. Laboratoire de biochimie et de génie enzymatique des lipases, Université de Sfax—Tunisie, ENIS route de Soukra, BPW, 1173, Sfax, Tunisia

    Zied Zarai, Hafedh Mejdoub, Sofiane Bezzine & Youssef-Talel Gargouri

  2. Laboratoire de Microbiologie et Pathologie Humaine, Centre Hospitalier Universitaire (CHU) de Habib Bourguiba, Sfax, Tunisia

    Houda Gharsallah & Adnane Hammami

Authors
  1. Zied Zarai
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  2. Houda Gharsallah
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  3. Adnane Hammami
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  4. Hafedh Mejdoub
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  5. Sofiane Bezzine
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  6. Youssef-Talel Gargouri
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Correspondence to Youssef-Talel Gargouri.

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Zarai, Z., Gharsallah, H., Hammami, A. et al. Antibacterial, Anti-Chlamydial, and Cytotoxic Activities of a Marine Snail (Hexaplex trunculus) Phospholipase A2: an In Vitro Study. Appl Biochem Biotechnol 168, 877–886 (2012). https://doi.org/10.1007/s12010-012-9826-1

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  • DOI: https://doi.org/10.1007/s12010-012-9826-1

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