PharmDr. Jakub Chlebek, Ph.D.

Research focus

  • isolation of secondary metabolites from plant families Fumariaceae, Papaveraceae and Amaryllidaceae (isolation, analysis, structural identification)
  • in vitro biological activities of isolated compounds (AChE, BuChE, POP, GSK-3β and BACE1 inhibition activity and antioxidative activity)


  • 2002-2007 Charles University in Prague, Faculty of Pharmacy, (Master degree), Thesis: Pharmacognostic study of Alnus spp.
  • 2007-2012 Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Department of Pharmaceutical Botany and Ecology, (Doctoral degree), Thesis: Study of biological activity of alkaloids isolated from Corydalis cava (Fumariaceae)

Current position

  • a staff position at Charles University, Faculty of Pharmacy in Hradec Králové, Department of Pharmaceutical Botany

Teaching activities

  • Pharmaceutical botany (practicals)
  • Toxicity of natural products (lectures)
  • Phytochemical methods (practicals)
  • Forensic and clinical analysis of toxic compounds (lectures)

Research fellowship

  • 2011 University of Bologna, Italy, Department of Pharmaceutical Sciences – supervisor prof. Vincenza Andrisano (5 months)
  • 2014 Medicinal Chemistry Institute-CSIC in Madrid, Spain - supervisor prof. Ana Martinez (2 months)

Professional membership

  • since 2009 – Czech Chemical Society
  • since 2007-2013 – Czech Apothecary Association

Grant recieved

  • Chlebek, J., Cahlíková, L., Macáková, K., Opletal, L.: Plant secondary metabolites from subclasses Magnoliidae, Ranunculidae, Cornidae and Lamiidae influencing in vitro activity of human cholinesterases as a contribution to study of Alzheimerʼs disease: bio-guided isolation strategy. Grant Agency of Charles University, No. 122309/2009/B-BIO (2009–2011).


Monographs (and chapters)


OPLETAL, L., ROZKOT, M., CHLEBEK, J., ČEŘOVSKÝ, J.: Látky přírodního původu potenciálně ovlivňující reprodukci prasat, in: OPLETAL, L., SKŘIVANOVÁ, V. (eds): Přírodní látky a jejich biologická aktivita. Sv. 2: Využití látek pro ovlivnění fyziologických procesů hospodářských zvířat, s. 517–582, Karolinum, Praha 2010, ISBN 978-80-246-1801-2.

Original papers


CHLEBEK, J., KORÁBEČNÝ, J., DOLEŽAL, R., ŠTĚPÁNKOVÁ, Š., PÉREZ, D.I., HOŠŤÁLKOVÁ, A., OPLETAL, L., CAHLÍKOVÁ, L., MACÁKOVÁ, K., KUČERA, T., HRABINOVÁ, M., JUN, D. In vitro and in silico acetylcholinesterase inhibitory activity of thalictricavine and canadine and their predicted penetration across the blood-brain barrier. Molecules 24, 1340 (2019).


ŠAFRATOVÁ, M., HOŠŤÁLKOVÁ, A., HULCOVÁ, D., BREITEROVÁ, K., HRABCOVÁ, V., MACHADO, M., FONTINHA, D., PRUDENCIO, M., KUNEŠ, J., CHLEBEK, J., JUN, D., HRABINOVÁ, M., NOVÁKOVÁ, L., HAVELEK, R., SEIFERTOVÁ, M., OPLETAL, L., CAHLÍKOVÁ, L: Alkaloids from Narcissus poeticus cv. Pink Parasol of various structural types and their biological activity. Arch. Pharm. Res. 41, 208-218 (2018). 

HABARTOVÁ, K., HAVELEK, R., SEIFERTOVÁ, M., KRÁLOVEC, K., CAHLÍKOVÁ, L., CHLEBEK, J., ČERMÁKOVÁ, E., MAZÁNKOVÁ, N., MAŘÍKOVÁ, J., KUNEŠ, J., NOVÁKOVÁ, L., ŘEZÁČOVÁ, M.: Scoulerine affects microtubule structure, inhibits proliferation, arrests cell cycle and thus culminates in the apoptotic death of cancer cells. Sci. Reports 8, article number: 4829 (2018).


SIATKA, T., CHLEBEK, J., HOŠŤÁLKOVÁ, A.: Copper(II) sulfate stimulates scopoletin production in cell suspension of Angelica archangelica. Nat. Prod. Commun. 12, 1779-1780 (2017).

SIATKA, T., ADAMCOVÁ, M., OPLETAL, L., CAHLÍKOVÁ, L.,  JUN, D., HRABINOVÁ, M., KUNEŠ, J., CHLEBEK, J.: Cholinesterase and prolyl oligopeptidase Inhibitory activities of alkaloids from Argemone platyceras (Papaveraceae). Molecules 22, 1181 (2017).


CHLEBEK, J., DOSKOČIL, I., HULCOVÁ, D., BREITEROVÁ, K., ŠAFRATOVÁ, M., HAVELEK, R., HABARTOVÁ, K., HOŠŤÁLKOVÁ, A., VOLŠTÁTOVÁ, T., CAHLÍKOVÁ, L.: Cytotoxicity of Naturally Occurring Isoquinoline Alkaloids of  Different Structural Types. Nat. Prod. Commun11, 753-756 (2016).

CHLEBEK, J., NOVÁK, Z., KASSEMOVÁ, D., ŠAFRATOVÁ, M., KOSTELNÍK, J., MALÝ, L., LOČÁREK, M., OPLETAL, L., HOŠŤÁLKOVÁ, A., HRABINOVÁ, M., KUNEŠ, J., NOVOTNÁ, P., URBANOVÁ, M., NOVÁKOVÁ, L., MACÁKOVÁ, K., HULCOVÁ, D., SOLICH, P., MARTÍN, C.P., JUN, D., CAHLÍKOVÁ, L..: Isoquinoline alkaloids from Fumaria officinalis L. and their biological activities related to Alzheimer’s disease. Chem. Biodivers. 13, 91-99 (2016).

CHLEBEK, J., DE SIMONE, A., HOŠŤÁLKOVÁ, A., OPLETAL, L., PERÉZ, C., PERÉZ, D.I., HAVLÍKOVÁ, L., CAHLÍKOVÁ, L., ANDRISANO, V.: Application of BACE1 immobilized enzyme reactor for the characterization of multifunctional alkaloids from Corydalis cava (Fumariaceae) as Alzheimer’s disease targets. Fitoterapia 109, 241-247 (2016).

VANĚČKOVÁ, N., HOŠŤÁLKOVÁ, A., ŠAFRATOVÁ, M., KUNEŠ, J., HULCOVÁ, D., HRABINOVÁ, H., DOSKOČIL, I., ŠTĚPÁNKOVÁ, Š., OPLETAL, L., NOVÁKOVÁ, L., JUN, D., CHLEBEK, J., CAHLÍKOVÁ, L.: Alkaloids from Nerine bowdenii W. Watson (Amaryllidaceae) and their biological activity. RSC Advances 6, 80114-80120 (2016).


ZEMANOVA, L., HOFMAN, J., NOVOTNA, E., MUSILEK, K., LUNDOVA, T., HAVRANKOVA, J., HOSTALKOVA, A., CHLEBEK, J., CAHLIKOVA, L., WSOL, V.: Flavones inhibit the activity of AKR1B10, a promising therapeutic target for cancer treatment. J. Nat. Prod. 78, 2666-2674 (2015).

DOSKOČIL, I., HOŠŤÁLKOVÁ, A., ŠAFRATOVÁ, M., BENEŠOVÁ, N., HAVLÍK, J., HAVELEK, R., KUNEŠ, J., KRÁLOVEC, K., CHLEBEK, J., CAHLÍKOVÁ, L.: Cytotoxic activities of Amaryllidaceae alkaloids against gastrointestinal cancer cells. Phytochem. Lett. 13, 394-398 (2015).

CAHLÍKOVÁ, L., PÉREZ, D.I., ŠTĚPÁNKOVÁ, Š, CHLEBEK, J., ŠAFRATOVÁ, M., HOŠŤÁLKOVÁ, A., OPLETAL, L.: In vitro inhibitory effects of 8-O-demethylmaritidine and undulatine on acetylcholinesterase, and their predicted penetration across the blood-brain barrier. J. Nat. Prod. 78, 1189-1192 (2015).

HOŠŤÁLKOVÁ, A., OPLETAL, L., KUNEŠ, J., NOVÁK, Z., HRABINOVÁ, M., CHLEBEK, J., CAHLÍKOVÁ, L.: Alkaloids from Peumus boldus Mol. and their acetylcholinesterase, butyrylcholinesterase and prolyl oligopeptidase inhibition activity. Nat.. Prod. Commun. 10, 577-580 (2015).

CAHLÍKOVÁ, L., HULOVÁ, L., HRABINOVÁ, M., CHLEBEK, J., HOŠŤÁLKOVÁ, A., ADAMCOVÁ, M., ŠAFRATOVÁ, M., JUN, D., OPLETAL, L., LOČÁREK, M., MACÁKOVÁ, K.: Isoquinoline alkaloids as potential prolyl oligopeptidase inhibitors. Fitoterapia 103, 192-196 (2015).


OPLETAL, L., LOČÁREK, M., FRAŇKOVÁ, A., CHLEBEK, J., ŠMÍD, J., HOŠŤÁLKOVÁ, A., ŠAFRATOVÁ, M., HULCOVÁ, D., KLOUČEK P., ROZKOT, M., CAHLÍKOVÁ, L.: Antimicrobial activity of extracts and isoquinoline alkaloids of selected Papaveraceae plants. Nat. Prod. Commun. 9, 1709-1712, (2014).

ŠKARYDOVÁ, L., HOFMAN, J., CHLEBEK, J., HAVRÁNKOVÁ, J., KOŠANOVÁ, K., SKARKA, A., HOŠŤÁLKOVÁ, A., PLUCHA, T., CAHLÍKOVÁ, L., WSÓL, V.: Isoquinoline alkaloids as a novel type of AKR1C3 inhibitors. J. Steroid Biochem. Mol. Biol. 143, 250-258 (2014).

SCHRAMM, A., JÄHNE, E., BABURIN, I., HERING, S., CAHLÍKOVÁ, L., CHLEBEK, J., HAMBURGER, M.: Natural products as potential human ether-a-go-go-related gene channel inhibitors – screening of plant-derived alkaloids . Planta Med. 80, 740-746 (2014).


CAHLÍKOVÁ, L., HRABINOVÁ, M., KULHÁNKOVÁ, A., BENEŠOVÁ, N., CHLEBEK, J., JUN, D., NOVÁK, Z., KUČA, K., MACÁKOVÁ, K., OPLETAL, L. Alkaloids from Chlidanthus fragrans Herb. and their acetylcholinesterase, butyrylcholinesterase and prolyl oligopeptidase inhibition activity. Nat. Prod. Commun. 8, 1541-1544 (2013).

CAHLÍKOVÁ, L., LOČÁREK, M., BENEŠOVÁ, N., KUČERA, R., CHLEBEK, J., NOVÁK, Z., OPLETAL, L.: Isolation and cholinesterase inhibitory activity of Narcissus extracts and Amaryllidaceae alkaloid. Nat. Prod. Commun. 8, 781-785 (2013).


NOVÁK, Z., CHLEBEK, J., OPLETAL, L., JIROŠ, P., MACÁKOVÁ, K., KUNEŠ, J., CAHLÍKOVÁ, L.: Corylucinine, a new Alkaloid from Corydalis cava (Fumariaceae), and its cholinesterase activity. Nat. Prod. Commun. 7, 859-860 (2012).


CHLEBEK, J., MACÁKOVÁ, K., CAHLÍKOVÁ, L., KURFÜRST, M., KUNEŠ, J., OPLETAL, L.: Acetylcholinesterase and butyrylcholinesterase Inhibitory compounds from Corydalis cava Schweigger. & Korte (Fumariaceae). Nat. Prod. Commun. 6, 607-610 (2011).


CAHLÍKOVÁ, L., MACÁKOVÁ, K., KUNEŠ, J., KURFÜRST, M., OPLETAL, L., CVAČKA, J., CHLEBEK, J., BLUNDEN, G.: Acetylcholinesterase and butyrylcholinesterase inhibitory compounds from Eschscholzia californica (Papaveraceae). Nat. Prod. Commun. 5, 1035-1038 (2010).



HOŠŤÁLKOVÁ, A., SIATKA, T., CHLEBEK, J., OPLETAL, L., DRAŠAR, P., CAHLÍKOVÁ, L.: Boldinové alkaloidy a perspektivity jejich využití. Chem. listy 109, 846-855 (2015).


MACÁKOVÁ, K., KOLEČKÁŘ, V., CAHLÍKOVÁ, L., CHLEBEK, J., HOŠŤÁLKOVÁ, A., KUČA, K., JUN, D., OPLETAL, L.: Tannins and their influence on health. Recent Advances in Medicinal Chemistry. Bentham Science Publishers 1, 159-208 (2014).

CAHLÍKOVÁ, L., MACÁKOVÁ, K., BENEŠOVÁ, N., CHLEBEK, J., HOŠŤÁLKOVÁ, A., OPLETAL, L.: Natural compounds (small molecules) as potential and real drugs of Alzehimers disease: A critical review, in: Studies in natural products chemistry (ATTA-ur-RAHMAN, ed.), Chapter 6, Elsevier: Amsterdam 2014, pp. 153-194, ISBN: 978-0-444-63281-4.


OPLETAL, L., CHLEBEK, J., MACÁKOVÁ, K., BENEŠOVÁ, N., HOŠŤÁLKOVÁ, A., CAHLÍKOVÁ, L.: Antioxidanty a degenerativní onemocnění. Prakt. Lékáren. 9, 135-138 (2013).


KOLEČKÁŘ, V., ŘEHÁKOVÁ, Z, BROJEROVÁ, E., KUČA, K., JUN, D., MACÁKOVÁ, K., OPLETAL, L., DRAŠAR, P., JAHODÁŘ, L., CHLEBEK, J., CAHLÍKOVÁ, L.: Proanthocyanidiny a jejich antioxidační aktivita. Chem. listy 106, 113-121 (2012).


CAHLÍKOVÁ, L., MACÁKOVÁ, K., CHLEBEK, J., HOŠŤÁLKOVÁ, A., KULHÁNKOVÁ, A., OPLETAL, L.: Ecdysterone and its activity on some degenerative diseases. Nat. Prod. Commun. 6, 707-718 (2011).

© Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
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