Biosynthesis of lipopolysaccharides with different length of the O-specific region as a virulence factor of Gram-negative bacteria

Journal Title: Advances in Hygiene and Experimental Medicine - Year 2018, Vol 72, Issue

Abstract

The outer membrane of Gram-negative bacteria is a biological structure with a unique composition that significantly contributes to the survival of bacteria in the unfavorable conditions of the host organism. The lipopolysaccharide constitutes about 70% of the external part of the outer membrane. The LPS molecule is composed of three different parts: lipid A, core oligosaccharide and O antigen. Despite the O-specific antigen being one of the most intensely studied surface structures of bacterial polysaccharides, a number of questions regarding the mechanism of the O antigen biosynthesis and its transport to the cell surface are still unanswered. The paper describes the biosynthesis of the lipopolysaccharide molecule, with particular emphasis on the O-specific chain biosynthesis, the mechanism of lipopolysaccharide length regulation and the influence of the type of synthesized O-specific chains on bacterial survival in adverse host organisms.<br/><br/>

Authors and Affiliations

Eva Krzyżewska, Jacek Rybka

Keywords

Related Articles

The role of complement factor H in the pathogenesis of Borrelia infection

Complement factor H (CFH) is one of the most important negative regulators of the alternative pathway of the complement system. It is a glycoprotein belonging to the protein H family, which is synthesized mainly in the...

Physical exercise in the rehabilitation of dialysis patients

A sedentary lifestyle is one of the main causes of low physical capacity and an independent risk factor for death in patients with end-stage renal disease (ESRD) undergoing hemodialysis (HD). The physical capacity of ESR...

Novel methods of cytokine detection: Real-time PCR, ELISPOT, and intracellular cytokine staining

Cytokines are small hormone-like proteins that play important roles in immune system control. Cytokines regulate the proliferation and differentiation of cells and hematopoiesis and act as mediators in the inflammatory r...

Oxidative stress and natural antioxidant mechanisms: the role in neurodegeneration. From molecular mechanisms to therapeutic strategies

A lot of evidence exists that oxidative stress is the primary cause of neurodegeneration. Neurons are more susceptible to oxidative damage than other cells due to their high oxygen consumption, low activity of antioxidan...

Surface proteins of bacteria of the genus Bifidobacterium

Beneficial effects due to the presence of probiotic bacteria of the genus Bifidobacterium in the human intestinal tract are still an interesting object of study. So far activities have been confirmed of bifidobacteria in...

Download PDF file
  • EP ID EP343209
  • DOI 10.5604/01.3001.0012.1735
  • Views 139
  • Downloads 0

How To Cite

Eva Krzyżewska, Jacek Rybka (2018). Biosynthesis of lipopolysaccharides with different length of the O-specific region as a virulence factor of Gram-negative bacteria. Advances in Hygiene and Experimental Medicine, 72(), 573-586. https://europub.co.uk./articles/-A-343209