prof. dr. ir. Z. (Krzysztof) Hartlief
prof. dr. ir. Z. (Krzysztof) Hartlief
- Infectious Diseases Research 4
Research Programs
Biography
Biography
Dr Krzysztof Trzciński, is a microbiologist and Principal Investigator in the Respiratory Infections Research Group at the University Medical Centre Utrecht (UMCU).
Before taking up the position of Associate Professor at the Department of Pedatric Immunology and Infectious Diseases at UMCU in 2009, he worked as a Senior Research Scientist at Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
His main area of interest is Streptococcus pneumoniae (pneumococcus), whether it be a respiratory pathogen, or human commensal. Despite available vaccines targeting pneumococcal disease, S. pneumoniae remains one of the top causes of death due to bacterial respiratory infections.
In his work, Dr Trzciński focuses on innate and acquired immune responses to natural colonization with S. pneumoniae, as well as mechanisms maintaining the diversity of pneumococcal capsular types (serotypes) circulating and causing disease in the human population. He is using both experimental and epidemiological approaches in his research. With his work, he contributed to the discovery that naturally acquired mucosal immunity to pneumococcal colonization is largely antibody-independent (Trzciński et al. Infect.Immun. 2005), yet antigen-specific (Trzciński et al. Infect.Immun. 2008), while transcending serotypes (Malley et al. PNAS 2005). These findings opened new opportunities in developing vaccines (Li et al. PLoS Path. 2012). Also, utilizing pneumococcal strains that differ only by serotype (Trzciński et al. App.Env.Microbiol. 2003), he and his co-workers showed that simple characteristics of the capsular polysaccharide allow predictions of prevalence of a serotype in carriage (Weinberger et al. PLoS Path. 2009, Li et al. Infect.Immun. 2013, Trzciński et al. MBio 2015) and invasiveness in disease (Hyams et al. Infect.Immun. 2013), and that capsular characteristics could be linked to variations in S. pneumoniae resistance to certain immune responses: opsonin-independent killing of pneumococci by neutrophils (Weinberger et al. PLoS Path. 2009) and the deposition of complement and opsonophagocytosis (Melin et al. Infect. Immun. 2010a; Melin et al. Infect.Immun. 2010b, Hyams et al. Infect.Immun. 2013). He also contributed to better understanding the factors mediating interaction between pneumoocci and other pathogens colonizing the upper respiratory tract, Staphylococcus aureus in particular (Regev-Yochay et al. J.Bac. 2006, Selva et al. PNAS 2009).
Currently, he is developing enhanced methods for pneumococcal colonization detection, and for studying multi-serotype carriage (Trzciński et al. PLoS ONE, 2013, Wyllie et al. PLoS ONE 2014, Krone et al. PLoS ONE 2015, Trzciński et al. MBio 2015, Miellet et al. CID 2021, Miellet et al. Front.Microbiol. 2022).
With his work, Dr Trzciński aims to broaden our understanding of the interactions between S. pneumoniae and the host during colonization and infection, and enhance the knowledge necessary to assess accurately the effects of preventative strategies targeting pneumococcal disease.
Side Activities
MSD, Advisory Boards (from 2019 onwards), payments always to UMC Utrecht (>€2200,-)
Pfizer, speaker (2018), payment to UMC Utrecht (>€2200,-)
Pfizer, Advisory Board (2017), payment to UMC Utrecht (<€2200,-)
Fellowship and Awards
2000 British Society for Antimicrobial Chemotherapy Research Fellowship
1999 European Respiratory Society Research Fellowship
1998 Royal Society/NATO Research Fellowship
1997 Award of the European Congress of Clinical Microbiology and Infectious Diseases, Lausanne, Switzerland
1994 European Society of Clinical Microbiology and Infectious Diseases Young Scientist Research Fellowship
Research Output (80)
Miellet Willem R., Mariman Rob, Pluister Gerlinde, de Jong Lieke J., Grift Ivo, Wijkstra Stijn, van Logchem Elske M., van Veldhuizen Janieke, Immink Marie Monique, Wijmenga-Monsuur Alienke J., Rots Nynke Y., Sanders Elisabeth A.M., Bosch Thijs, Trzciński Krzysztof 30 Nov 2021, In: Scientific Reports. 11 , p. 1-9
Miellet Willem R., Van Veldhuizen Janieke, Nicolaie Mioara A., Mariman Rob, Bootsma Hester J., Bosch Thijs, Rots Nynke Y., Sanders Elisabeth A.M., Van Beek Josine, Trzciński Krzysztof 1 Nov 2021, In: Clinical Infectious Diseases. 73 , p. E2680-E2689
Arends D. W., Miellet W. R., Langereis J. D., Ederveen T. H.A., van der Gaast–de Jongh C. E., van Scherpenzeel M., Knol M. J., van Sorge N. M., Lefeber D. J., Trzcinski K., Sanders E. A.M., Dorfmueller H. C., Bootsma H. J., de Jonge M. I. 15 Oct 2021, In: Infection and Immunity. 89 , p. 1-14
Grant Lindsay R., Slack Mary P.E., Yan Qi, Trzciński Krzysztof, Barratt Jane, Sobczyk Elizabeth, Appleby James, Cané Alejandro, Jodar Luis, Isturiz Raul E., Gessner Bradford D. Jun 2021, In: Expert Review of Vaccines. 20 , p. 691-705 15 p.
Arguedas Adriano, Trzciński Krzysztof, O’Brien Katherine L., Ferreira Daniela M., Wyllie Anne L., Weinberger Daniel, Danon Leon, Pelton Stephen I., Azzari Chiara, Hammitt Laura L., Sá-Leão Raquel, Brandileone Maria Cristina C., Saha Samir, Suaya Jose, Isturiz Raul, Jodar Luis, Gessner Bradford D. 2 Apr 2020, In: Expert Review of Vaccines. 19 , p. 353-366 14 p.
Lees John A., Ferwerda Bart, Kremer Philip H.C., Wheeler Nicole E., Serón Mercedes Valls, Croucher Nicholas J., Gladstone Rebecca A., Bootsma Hester J., Rots Nynke Y., Wijmega-Monsuur Alienke J., Sanders Elisabeth A.M., Trzciński Krzysztof, Wyllie Anne L., Zwinderman Aeilko H., van den Berg Leonard H., van Rheenen Wouter, Veldink Jan H., Harboe Zitta B., Lundbo Lene F., de Groot Lisette C.P.G.M., van Schoor Natasja M., van der Velde Nathalie, Ängquist Lars H., Sørensen Thorkild I.A., Nohr Ellen A., Mentzer Alexander J., Mills Tara C., Knight Julian C., du Plessis Mignon, Nzenze Susan, Weiser Jeffrey N., Parkhill Julian, Madhi Shabir, Benfield Thomas, von Gottberg Anne, van der Ende Arie, Brouwer Matthijs C., Barrett Jeffrey C., Bentley Stephen D., van de Beek Diederik 15 May 2019, In: Nature Communications. 10
Mariman Rob, Bosch Thijs, Miellet Willem, Pluister Gerlinde N., van Veldhuizen Janieke, Sanders Elisabeth , Trzcinski Krzysztof 2019, In: Nederlands tijdschrift voor medische microbiologie. 27 , p. 217-220
Balsells Evelyn, Dagan Ron, Yildirim Inci, Gounder Prabhu P., Steens Anneke, Muñoz-Almagro Carmen, Mameli Chiara, Kandasamy Rama, Givon Lavi Noga, Daprai Laura, van der Ende Arie, Trzciński Krzysztof, Nzenze Susan A., Meiring Susan, Foster Dona, Bulkow Lisa R., Rudolph Karen, Valero-Rello Ana, Ducker Struan, Vestrheim Didrik Frimann, von Gottberg Anne, Pelton Stephen I., Zuccotti Gian Vincenzo, Pollard Andrew J., Sanders Elisabeth A.M., Campbell Harry, Madhi Shabir A., Nair Harish, Kyaw Moe H. 1 Nov 2018, In: Journal of Infection. 77 , p. 368-378 11 p.
Yahiaoui Rachid Y., Bootsma Hester J., den Heijer Casper D.J., Pluister Gerlinde N., John Paget W., Spreeuwenberg Peter, Trzcinski Krzysztof, Stobberingh Ellen E. 29 Aug 2018, In: BMC Infectious Diseases. 18
Wyllie Anne L, Pannekoek Yvonne, Bovenkerk Sandra, van Engelsdorp Gastelaars Jody, Ferwerda Bart, van de Beek Diederik, Sanders Elisabeth A M, Trzciński Krzysztof, van der Ende Arie Sep 2017, In: Open Biology. 7