Marcelo Gottschalk


Country: Canada


  1. Fourour S, Marois Créhan C, Martelet L, Fablet C, Kempf I, Gottschalk M, et al. Intra-Species and Inter-Species Differences in Cytokine Production by Porcine Antigen-Presenting Cells Stimulated by Mycoplasma hyopneumoniae, M. hyorhinis, and M. flocculare. Pathogens. 2019;8: pubmed publisher
    ..Overall, this study demonstrated that the combination of M. hyorhinis or M. flocculare with M. hyopneumoniae may participate to the modulation of the immune response that might affect the final disease outcome. ..
  2. Dumesnil A, Auger J, Roy D, Vötsch D, Willenborg M, Valentin Weigand P, et al. Characterization of the zinc metalloprotease of Streptococcus suis serotype 2. Vet Res. 2018;49:109 pubmed publisher
    ..Taken together, our results show that S. suis serotype 2 Zmp is not a critical virulence factor and highlight the importance of independently confirming results on S. suis virulence by different teams. ..
  3. Gottschalk M. The challenge of detecting herds sub-clinically infected with Actinobacillus pleuropneumoniae. Vet J. 2015;206:30-8 pubmed publisher
    ..This review addresses different techniques and approaches used to monitor herds sub-clinically infected by this important pathogen. ..
  4. Hatrongjit R, Kerdsin A, Gottschalk M, Takeuchi D, Hamada S, Oishi K, et al. First human case report of sepsis due to infection with Streptococcus suis serotype 31 in Thailand. BMC Infect Dis. 2015;15:392 pubmed publisher
    ..Laboratory capacity to identify S. suis in the hospital is needed in developing countries, which can contribute to enhanced surveillance, epidemiological control, and prevention strategies in the prevalent area. ..
  5. Atanassov C, Bonifait L, Perivier M, Gottschalk M, Grenier D. Candidate proteomic biomarkers for three genogroups of the swine pathogen Streptococcus suis serotype 2. BMC Microbiol. 2015;15:84 pubmed publisher
    ..The possible involvement of the overexpressed proteins in the pathology of S. suis infections will require further investigation. ..
  6. Lecours M, Segura M, Lachance C, Mussá T, Surprenant C, Montoya M, et al. Characterization of porcine dendritic cell response to Streptococcus suis. Vet Res. 2011;42:72 pubmed publisher
    ..suis interacts with swine origin DCs and suggest that these cells might play a role in the development of host innate and adaptive immunity during an infection with S. suis serotype 2. ..
  7. Roy D, Grenier D, Segura M, Mathieu Denoncourt A, Gottschalk M. Recruitment of Factor H to the Streptococcus suis Cell Surface is Multifactorial. Pathogens. 2016;5: pubmed publisher
    ..In conclusion, this study suggests that recruitment of factor H to the S. suis cell surface is multifactorial and redundant. ..
  8. Meshkibaf S, Fritz J, Gottschalk M, Kim S. Preferential production of G-CSF by a protein-like Lactobacillus rhamnosus GR-1 secretory factor through activating TLR2-dependent signaling events without activation of JNKs. BMC Microbiol. 2015;15:238 pubmed publisher
    ..This study elucidated unique signaling events triggered by GR-1, resulting in selective production of the immunomodulatory cytokine G-CSF in macrophages. ..
  9. Auger J, Christodoulides M, Segura M, Xu J, Gottschalk M. Interactions of Streptococcus suis serotype 2 with human meningeal cells and astrocytes. BMC Res Notes. 2015;8:607 pubmed publisher
    ..As such, the meningeal cells of the leptomeninges and the astrocytes of the glia limitans superficialis may not be directly implicated in the inflammatory response observed during meningitis in humans. ..

More Information


  1. Haas B, Vaillancourt K, Bonifait L, Gottschalk M, Grenier D. Hyaluronate lyase activity of Streptococcus suis serotype 2 and modulatory effects of hyaluronic acid on the bacterium's virulence properties. BMC Res Notes. 2015;8:722 pubmed publisher
    ..However, exogenous hyaluronic acid that is likely to interact with S. suis and host cells during the course of infection appears to modulate several virulence determinants of the bacterium, in addition to promote inflammation. ..
  2. Auger J, Fittipaldi N, Benoit Biancamano M, Segura M, Gottschalk M. Virulence Studies of Different Sequence Types and Geographical Origins of Streptococcus suis Serotype 2 in a Mouse Model of Infection. Pathogens. 2016;5: pubmed publisher
    ..The use of strains other than archetypal strains has increased our knowledge and understanding of the S. suis serotype 2 population dynamics. ..
  3. Mathieu Denoncourt A, Letendre C, Auger J, Segura M, Aragon V, Lacouture S, et al. Limited Interactions between Streptococcus Suis and Haemophilus Parasuis in In Vitro Co-Infection Studies. Pathogens. 2018;7: pubmed publisher
    ..suis and H. parasuis have limited in vitro interactions between them and use probably different host receptors, regardless to their level of virulence. ..
  4. Zheng H, Du P, Qiu X, Kerdsin A, Roy D, Bai X, et al. Genomic comparisons of Streptococcus suis serotype 9 strains recovered from diseased pigs in Spain and Canada. Vet Res. 2018;49:1 pubmed publisher
    ..The rapid population expansion of dominant lineage 1 occurred within the last 40 years probably due to the rapid development of the porcine industry. ..
  5. Gottschalk M, Xu J, Calzas C, Segura M. Streptococcus suis: a new emerging or an old neglected zoonotic pathogen?. Future Microbiol. 2010;5:371-91 pubmed publisher
    ..In this article we critically review the present knowledge on S. suis infection in humans, we discuss the hypotheses that may explain the 2005 outbreak and the repercussion of such an episode on the scientific community...
  6. Zheng H, Qiu X, Roy D, Segura M, Du P, Xu J, et al. Genotyping and investigating capsular polysaccharide synthesis gene loci of non-serotypeable Streptococcus suis isolated from diseased pigs in Canada. Vet Res. 2017;48:10 pubmed publisher
    ..When using a combination of the previously described 35 serotypes and the complete NCL system, the number of untypeable strains recovered from diseased animals in Canada would be significantly reduced. ..
  7. Segura M, Fittipaldi N, Calzas C, Gottschalk M. Critical Streptococcus suis Virulence Factors: Are They All Really Critical?. Trends Microbiol. 2017;25:585-599 pubmed publisher
    ..In this review we discuss the current contradictions and controversies raised by this explosion of virulence factors and the future directions that may be conceived to advance and enlighten research on S. suis pathogenesis. ..
  8. Martelet L, Lacouture S, Goyette Desjardins G, Beauchamp G, Surprenant C, Gottschalk M, et al. Porcine Dendritic Cells as an In Vitro Model to Assess the Immunological Behaviour of Streptococcus suis Subunit Vaccine Formulations and the Polarizing Effect of Adjuvants. Pathogens. 2017;6: pubmed publisher
  9. Calzas C, Taillardet M, Fourati I, Roy D, Gottschalk M, Soudeyns H, et al. Evaluation of the Immunomodulatory Properties of Streptococcus suis and Group B Streptococcus Capsular Polysaccharides on the Humoral Response. Pathogens. 2017;6: pubmed publisher
    ..Thus, other biochemical criteria unrelated to the presence of sialic acid may be responsible for the inaptitude of the host immune system to mount an effective response against certain S. suis and GBS CPS types. ..
  10. Chuzeville S, Auger J, Dumesnil A, Roy D, Lacouture S, Fittipaldi N, et al. Serotype-specific role of antigen I/II in the initial steps of the pathogenesis of the infection caused by Streptococcus suis. Vet Res. 2017;48:39 pubmed publisher
    ..Taken together, these findings suggest that surface exposed AgI/II likely play a key role in the first steps of the pathogenesis of the S. suis serotype 9 infection. ..
  11. Gottschalk M, Lacouture S, Bonifait L, Roy D, Fittipaldi N, Grenier D. Characterization of Streptococcus suis isolates recovered between 2008 and 2011 from diseased pigs in Québec, Canada. Vet Microbiol. 2013;162:819-25 pubmed publisher
    ..Electron microscopy studies confirmed the lack of capsular polysaccharide in selected non-typable high hydrophobic strains. The role and pathogenesis of the infection caused by these strains remain to be elucidated...