1. Invited plenary lecturer in the Panhellenic Symeonideio Research Conference on Cancer Research, Thessaloniki 2018.
2. Invited plenary lecturer in International Society of Enzymology Annual Conference, Naxos, Greece 2018.
3. Invited plenary lecturer in the Panhellenic Thematic Conference of the Hellenic Haematological Society, Kavala, 2017.
4. Invited speaker in 2nd Symposium on Advances in Cancer Immunology and Immunotherapy, Athens, December 2016.
5. Invited plenary lecturer in International Society of Enzymology Annual Conference, Syros, Greece 2016.
6. Invited speaker in 14th Conference of the Greek Society of Clinical Chemistry, Ioannina, September 2016
7. Invited speaker in Breast Cancer and tumors of the female reproductive tract meeting, Athens, December 2015.
8. Invited plenary lecturer in International Society of Enzymology Annual Conference, Corfu, Greece 2015.
9. Invited plenary lecturer in the INsPiRE International Conference-Oncogenic pathways and anti-tumor responses, Athens, 2014.
10. Invited plenary lecturer in International Society of Enzymology Annual Conference, Kos, Greece 2014.
11. Invited plenary lecturer in 5th International Symposium on Kallikreins and Kallikrein-Related peptidases, Toronto, Canada, 2013.
12. Invited speaker in 64th Congress of the Hellenic Society of Biochemistry and Molecular Biology, Athens, December 2013
13. Invited speaker in Breast Cancer and tumors of the female reproductive tract meeting, Athens, December 2013.
14. Invited speaker in "2nd International Conference and Exhibition on Cell & Gene Therapy", Florida, USA, 2013.
15. Invited plenary lecturer in 62nd Hellenic Society for Biochemistry and Molecular Biology Conference, Athens, Greece, 2011.
16. Invited speaker in EORTC , Head and neck cancer group meeting, Brussels, Belgium, March 2010
17. Invited plenary lecturer in 8th Tumor Markers - Targeted Therapy Congress, Athens, Greece, November 2010.
18. Invited speaker in 9th Conference of the Greek Society of Clinical Chemistry October 2010
19. Invited speaker in the workshop of Hellenic Society of Pathological Anatomy, Athens, Greece, May 2010.
20. Invited plenary lecturer in 3rd International Symposium on Kallikreins and Kallikrein-Related peptidases, Munich, 2009
21. Invited speaker in Biomedical Asia 2009 International Conference, Singapore, 2009.
22. Invited plenary lecturer, 3rd Euro-Mediterranean congress on Oncology Radiology, Tozeur, Tunisia, October 2008.
23. Invited plenary lecturer, 3rd Conference on Diagnostic, Predictive and Experimental Oncology, Czech republic, 2007.
24. Invited speaker, 4th Hellenic symposium on breast cancer, April 2007
25. Invited plenary lecturer, 8eme Seminaire Sur Les Cancers Du Cavum, de la biologie a la therapeutique, Tunisia, 2007.
26. Invited lecturer, 3o Pan-Hellenic anticancer conference, April 2007.
27. Invited plenary lecturer, 6o Pan-Hellenic Symposium of Clinical Chemistry, Athens, Greece, November 2006.
28. Invited plenary lecturer, 8th Meeting of the Hellenic Research Club for Connective Tissue & Matrix Biology, Heraklion, 2006.
29. Invited speaker in seminars of Clinical Research Unit , Medical School , Technical University of Munich - Germany , 2005.
30. Invited speaker, scientific symposium of 4th Surgery Department, 'Attikon' University General Hospital, June 2005.
31. Invited plenary lecturer, International Congress of Laboratory Medicine: Enzymes Meet Proteomics, Padova, Italy, October 2004.
32. Invited plenary lecturer, 4ï Mediterranean Conference of Laboratory Medicine, Bari, Italy, December 2004.
