Structural analysis of the Lactobacillus rhamnosus strain KL37C exopolysaccharide

Lipiński, Tomasz; Jones, Christopher; Lemercinier, Xavier; Korzeniowska‐Kowal, Agnieszka; Strus, Magdalena; Rybka, Jacek; Gamian, Andrzej; Heczko, Piotr B

doi:10.1016/s0008-6215(02)00526-8

Cited by 27 publications

(26 citation statements)

References 22 publications

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“…1. LPS, PGN, and EPS have polymer structures [11,12], therefore we can try to distinguish between specific and non-specific curves. The specific curves arising The multiple bond curve.…”

Section: Methodsmentioning

confidence: 99%

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Molecular Interaction between Bacterial Antigens and Macrophage Receptors Studied by Atomic Force Microscopy

et al. 2006

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“…1. LPS, PGN, and EPS have polymer structures [11,12], therefore we can try to distinguish between specific and non-specific curves. The specific curves arising The multiple bond curve.…”

Section: Methodsmentioning

confidence: 99%

“…Three types of bacterial antigens extracted from different groups of bacterial cells are used: lipopolysaccharides (LPS), peptidoglycan (PGN), and exopolysaccharides (EPS) [11,12]. These bacterial antigens are located on the surfaces of both Gm(-) and Gm(+) bacteria and are responsible for inflammation processes.…”

Section: Introductionmentioning

confidence: 99%

Molecular Interaction between Bacterial Antigens and Macrophage Receptors Studied by Atomic Force Microscopy

et al. 2006

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“…This characteristic could promote the ability of the bacterial surface hydrophobicity to adapt to environmental changes. [8][9][10][11] The best known determinants of cariogenicity in lactobacilli are their capacity to produce acids and their ability to grow and survive in an acidic environment. [12][13][14][15] The presence of S. mutans and Lactobacillus acidophilus in dental biofilm has been used as an indicator of cariogenic biofilm.…”

mentioning

confidence: 99%

Photodynamic Effects of Curcumin Against Cariogenic Pathogens

Araújo

Fontana

Bagnato

et al. 2012

Photomedicine and Laser Surgery

100

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Background data: The presence of Streptococcus mutans and Lactobacillus acidophilus in dental structure is an indicator of a cariogenic biofilm. Photodynamic therapy is a technique that involves the activation of photosensitizers by light in the presence of oxygen, resulting in the production of reactive radicals capable of inducing cell death. Reduction of bacteria levels can provide additional means of preventing dental caries. Objective: The present study evaluated the susceptibility of planktonic cultures of S. mutans (ATCC 25175) and L. acidophilus (ATCC-IAL-523) from the Adolfo Lutz Institute (IAL) to photodynamic therapy after sensitization with curcumin and exposure to blue light at 450 nm. Methods: Bacterial suspensions of S. mutans and L. acidophilus isolated (as single species) and combined (multspecies) were prepared and then evaluated. Four different groups were analyzed: L-D-(control group), L-D + (drug group), L + D-(light group), and L + D + (photodynamic therapy group). Two different concentrations of curcumin were tested (0.75 and 1.5 g/L) associated with a 5.7 J/cm 2 light emission diode. Results: Significant decreases ( p < 0.05) in the viability of S. mutans were only observed when the bacterial suspensions were exposed to both curcumin and light. Then, reductions in viability of up to 99.99% were observed when using 1.5 g/L of the photosensitizer. The susceptibility of L. acidophilus was considerably lower (21% and 37.6%) for both curcumin concentrations. Conclusions: Photodynamic therapy was found to be effective in reducing S. mutans and L. acidophilus on planktonic cultures. No significant reduction was found for L-D + , proving the absence of dark toxicity of the drug.

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“…Exopolysaccharides were obtained from L. rhamnosus KL37C strain isolated from the faeces of the human newborns and from Lactobacillus reuteri 133 from the gastrointestinal tract of Gαi2-deficient mice which showed clinical symptoms of colitis [14,15]. Briefly, bacteria were stored at -70 o C in MRS broth supplemented with 10% glycerol.…”

Section: Eps Isolationmentioning

confidence: 99%

Experimental immunology Immunosuppressive effect of systemic administration of Lactobacillus rhamnosus KL37C-derived exopolysaccharide on the OVA-specific humoral response

Ciszek-Lenda¹,

Nowak²,

Śróttek³

et al. 2012

cejoi

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Structural analysis of the Lactobacillus rhamnosus strain KL37C exopolysaccharide

Cited by 27 publications

References 22 publications

Molecular Interaction between Bacterial Antigens and Macrophage Receptors Studied by Atomic Force Microscopy

Molecular Interaction between Bacterial Antigens and Macrophage Receptors Studied by Atomic Force Microscopy

Photodynamic Effects of Curcumin Against Cariogenic Pathogens

Experimental immunology Immunosuppressive effect of systemic administration of Lactobacillus rhamnosus KL37C-derived exopolysaccharide on the OVA-specific humoral response

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