leukocidin


Also found in: Dictionary, Encyclopedia, Wikipedia.

leukocidin

 [loo″ko-si´din]
1. a substance toxic to leukocytes, killing the cells with or without lysis.
2. a type of exotoxin produced by pathogenic bacteria such as staphylococci or streptococci; it destroys leukocytes and may also damage monocytes and macrophages.

leu·ko·ci·din

(lū'kō-sī'din, lū-kō-sī'din),
A heat-labile substance that is elaborated by many strains of Staphylococcus aureus, Streptococcus pyogenes, and pneumococci and manifests a destructive action on leukocytes, with or without lysis of the cells.
[leukocyte + L. caedo, to kill]

leukocidin

(1) An antibody which lyses white cells following complement fixation.
(2) A pore-forming cytotoxin produced by certain bacteria.

leu·ko·ci·din

(lū'kō-sī'din)
A heat-labile substance that is elaborated by many strains of Staphylococcus aureus, Streptococcus pyogenes, and pneumococci; manifests a destructive action on leukocytes, with or without lysis of the cells.
Synonym(s): leucocidin.
[leukocyte + L. caedo, to kill]
References in periodicals archive ?
Mohapatra, "High Prevalence of Panton-Valentine leukocidin (PVL) genes in nosocomial-acquired staphylococcus aureus isolated from tertiary care hospitals in Nepal," BioMed Research International, vol.
Wright, "Panton-Valentine leukocidin Staphylococcus causing fatal necrotising pneumonia in a young boy," Case Reports, vol.
Combined action of influenza virus and Staphylococcus aureus panton-valentine leukocidin provokes severe lung epithelium damage.
Benallaoua et al., "Panton-Valentine leukocidin positive sequence type 80 methicillin-resistant Staphylococcus aureus carrying a staphylococcal cassette chromosome mec type IVc is dominant in neonates and children in an Algiers hospital," New Microbiologica, vol.
aureus isolates that originate from human and animal is PVL (lukS-PV ve lukF-PV) leukocidin (Lina et al., 1999; Rainard et al., 2003; Fueyo et al., 2005).
Characteristics of 56 Staphylococcus aureus isolates recovered from bovine mastitis cases Strains Type mastitis Spa Sequence Number case of isolation typing type 102 clinical t 007 2598 106 subclinical t 267 97 111 subclinical t 021 39 110 subclinical t 021 243 138 clinical t 267 97 143 clinical t 267 97 145 subclinical t 021 243 133 clinical t 007 39 Strains PVL MSSA Year of Number positive isolation 102 + + 2012 106 - + 2012 111 - + 2011 110 - + 2012 138 + + 2012 143 - + 2011 145 - + 2011 133 - + 2011 PVL: Planton-Valentino Leukocidin, MSSA: Methicillin sensible Staphylococcus aureus +: Characteristics positives -: Characteristics negatives
La leucocidina de Panton-Valentine (Panton-Valentine leukocidin; PVL, por sus siglas en ingles), es una leucocidina bicomponente codificada por dos genes cotranscriptos, a saber, lukS-PV y lukF-PV (lukS/F-PV), que residen en el genoma de un bacteriofago templado phiPVL aislado de S.
Panton-Valentine leukocidin and staphylococcal skin infections in school children.
Severe community-onset pneumonia in healthy adults caused by methicillin-resistant Staphylococcus aureus carrying the Panton-Valentine leukocidin genes.
Studies mention that PVL (Panton-Valentine leukocidin) encoded strain of staphylococcus aureus is more often noted with DVT in case of AHO.