Detection of Panton – Valentine Leukocidin Toxin by Polymerase Chain Reaction in Methicillin Resistant Staphylococcal aureus Isolates
Krithikaa Sekar*
Faculty of Medicine, Sri Lalithambigai Medical College and Hospital, Unit of MGR Educational and Research Institute, Chennai, India
*Corresponding Author: Krithikaa Sekar, Faculty of Medicine, Sri Lalithambigai Medical College and Hospital, Unit of MGR Educational and Research Institute, Chennai, India.
Received:
December 12, 2022; Published: January 06, 2023
Abstract
Introduction: Staphylococcus aureus is a major pathogen causing a diversity of life–threatening systemic infections. The MRSA is known to have high probability of PVL toxin gene. The frequency of PVL-producing MRSA in various clinical samples were detected by PCR.
Methods: 218 MRSA isolates from heterogeneous clinical samples received in microbiology laboratory were processed to detect mecA and PVL gene by PCR.
Results: In the present study, out of 218 isolates, 192 were mecA positive by PCR. Of the 192 mecA positive isolates, 104 (54.16%) samples were positive for PVL toxin.
Conclusion: The PCR system used in the study is specific for the mec A and PVL. This may lead to specific therapeutic approaches targeting PVL in severe PVL-related staphylococcal syndromes.
Keywords: MRSA; Mec A; PVL Toxin; PCR
References
- Denis O., et al. “Emergence of Vancomycin-intermediate Staphylococcus aureus in a Belgian hospital, Microbiological and clinical features”. Journal of Antimicrobial Chemotherapy 50 (2002): 383-391.
- Mohanasoundaram KM and Lalitha MK. “Comparison of phenotypic versus genotypic methods in the detection of Methicillin resistance in Staphylococcus aureus”. Indian Journal of Medical Research 127 (2008): 78-84.
- Pulimood TB., et al. “The spectrum of anti-microbial resistance among methicillin resistant Staphylococcus aureus in a tertiary care center in India”. Indian Journal of Medical Research 103 (1996): 212-215.
- Mathur SK., et al. “Prevalence of Methicillin resistant Staphylococcus aureus in a tertiary care hospital”. Indian Journal of Medical Microbiology 12 (1994): 96-101.
- Pal N and Ayyagari A. “Drug resistance pattern of Methicillin resistant Staphylococcus aureus”. Indian Paediatric 28 (1991): 725-727.
- Badiou C., et al. “Rapid Detection of Staphylococcus aureus Panton-Valentine Leukocidin in Clinical Specimens by Enzyme-Linked Immunosorbent Assay and Immunochromatographic Tests”. Journal of Clinical Microbiology 48 (2010): 1384-1390.
- Baba T., et al. “Genome and virulence determinants of high virulence community-acquired MRSA”. Lancet 359 (2020): 1819-1827.
- Panton PN., et al. “Staphylococcal Toxin". The Lancet 1 (2007): 506-508.
- Vavra SB and Daum RS. “Community-acquired methicillin-resistant Staphylococcus aureus: the role of Panton–Valentine leucocidin”. Laboratory Investigation1: 3-9.
- , et al. “Effect of purified staphylococcal leukocidal toxins on isolated blood polymorphonuclear leukocytes and peritoneal macrophages in vitro”. Clinical Infectious Diseases 45:1550-1558; 88:383-394.
- , et al. “Staphylococcus aureus Panton-Valentine leukocidin directly targets mitochondria and induces Bax-independent apoptosis of human neutrophils”. Journal of Clinical Investigation 115 (2005): 3117-3127.
- Hamilton S M., et al. “In vitro production of Panton-Valentine leukocidin among strains of methicillin-resistant Staphylococcus aureus causing diverse infections”. Clinical Infectious Diseases 45 (2007): 1550-1558.
- Prajna P and Vishwanath G. “Study of Vancomycin susceptibility in MRSA isolated from various clinical samples”. Thesis; Rajiv Gandhi University of Health science (2007).
- Siddiq F and Masood M. “Antibiogram sensitivity pattern of Methicillin resistant aureus isolates from pus samples”. Pakistan Journal of Biological Science 55 (2002): 491-493.
- Tandel K., et al. “Differences in Vancomycin MIC among MRSA isolates by agar dilution and E test method”. IJMM 4 (2012): 453-455.
- Saderi H., et al. “Vancomycin resistance among clinical isolates of Staphylococcus aureus”. Archives of Iranian Medicine 2 (2005): 272-278.
- Tiwari HK and Sen MR. “Emergence of Vancomycin resistant Staphylococcus aureus (VRSA) from a tertiary care hospital from northern part of India”. BMC Infectious Diseases 6 (2006): 156.
- Bouguessa NM., et al. “Detection of Methicillin-Resistant Staphylococcus aureus Strains Resistant to Multiple Antibiotics and Carrying the Panton-Valentine Leukocidin Genes in an Algiers Hospital”. Clinical Infectious Diseases 29:1128-1132.
- Kaur H., et al. “Resistant Staphylococcus aureus Infections and Evaluation of PVL Producing Strains in Belgaum, South India”. Journal of Krishna Institute of Medical Sciences University2 (2012): 56-61.
- Souza ND., et al. “Molecular Characterization of Methicillin-Resistant Staphylococcus aureus with Emergence of Epidemic Clones of Sequence Type (ST) 22 and ST 772 in Mumbai, India”. Journal of Clinical Microbiology 5 (2010): 1806-1811.
- Gillet Y and Lyon. “PVL Associated Infections: an overview: Guidelines for patient management”. 14th International Symposium on Staphylococci and Staphylococcal Infections (ISSSI) Bath, 6-9 September, (2010).
- Cribier B., et al. “Staphylococcus aureus leukocidin: a new virulence factor in cutaneous infections? An epidemiological and experimental study”. Dermatology 185 (1992): 175-180.
- Ward P D and W H Turner. “Identification of staphylococcal Panton-Valentine leukocidin as a potent dermonecrotic toxin”. Infection and Immunity 28 (1980): 393-397.
- Diep B A., et al. “2009 Panton-Valentine leukocidin determines the virulence of USA300 methicillin-resistant Staphylococcus aureus in a rabbit model of fulminant necrotizing, hemorrhagic pneumonia”. 49th Conf. Antimicrob. Agents Chemother. American Society for Microbiology, Washington, DC. abstr. (2009): B-1087.
Citation
Copyright