Natural Sciences and Mathematics Faculty, Zagreb University, 1992-1998, B.Sc., Molecular Biology

Natural Sciences and Mathematics Faculty Graduate School, Zagreb University, 2000-2006., Ph.D., Biology

Third prize, National competition for guitar students, Velika Gorica, Croatia, 1986

Student Scholarship to top students, 1998-1992

Certificate of Appreciation to top students, V Gymnasium Zagreb, 1992

Certificate of Appreciation, Rudjer Bošković Open Days Organizing Comity, 2004

The Best Poster Award: Third Croatian Congress of Pharmacology, Zagreb, Septembar 18-21, 2001.

FEMS award to outstanding young scientists to participate on Scientific Meeting ‘Workshop on molecular pathogenesis of Marek’s disease and avian immunology’, Cyprus, October 2002

Graduate course: Functional genomics, Graduate School Molecular Biosciences, Dubrovnik

Biology Professor, ALU, Zagreb

Ester, Katja; Supek, Fran; Majsec, Kristina; Marjanović, Marko; Lembo, David; Donalisio, Manuela; Šmuc, Tomislav;  Jarak, Ivana; Kraminski-Zamola, Grace; Kralj, Marijeta.  Putative mechanisms of antitumor activity of cyano-substituted heteroaryles in HeLa cells. Investigational New Drugs. 2012 Apr;30(2):450-67

Ester, Katja; Hranjec, Marijana; Piantanida, Ivo; Caleta,  Irena; Jarak, Ivana; Pavelić, Krešimir; Kralj, Marijeta;  Karminski-Zamola, Grace.
Novel Derivatives of Pyridyl-Benzo(b)thiophene-2-carboxamides  and Benzo(b)thieno(2,3-c)naphthyridin-2-ones: Minor Structural  Variations Provoke Major Differences of Antitumor Action Mechanisms. Journal of Medicinal Chemistry. 52 (2009), 8; 2482-2492.

Original scientific paper

• Ragland, William Lauman ; Savić, Vladimir ; Novak, Renata ; Ester, Katja | Abundance of ChIFN-gamma and ChIFN-alpha an Blood of Broiler Chickens During an Outbreak of Chicken Infectious Anaemia // Immunosuppressive viral diseases in poultry. | Luxembourg: European Communities, 2003. str. 126-127

• Novak, Renata ; Ester, Katja ; Savić, Vladimir ; Ragland, William Lauman | Immune status assessment by abundance of interferon alpha and gamma mRNA in chicken blood following antigenic challenge with inactivated Newcastle disease virus // Economic Impact Assessment of the Immunosuppressive Viral Diseases in Poultry. | Luxembourg: European Communities, 2002. str. 84-88

Original scientific paper

• Tomašić Paić, Ana; Horvat, Lucija; Ester, Katja; Matovina, Mihaela | Investigating KEAP1-DPP3 interaction in live cells: Challenges and considerations in BiFC assay design: BiFC in live cells: Lessons from studying KEAP1-DPP3 // Periodicum biologorum, 127 (2026), 3-4; 231-236. doi: 10.18054/pb.v127i3-4.36109

  doihrcak.srce.hr

• Barbarić, Lea; Oskomić, Marina; Horvat, Anđela; Ester, Katja; Stojanović, Nikolina; Tomašić Paić, Ana; Matovina, Mihaela | Dipeptidyl Peptidase 3 Knockdown in HeLa Cells Induces G0/G1 Cell Cycle Arrest Associated with Upregulation of p21 Protein // Biocell, 50 (2026), 8; 1-10. doi: 10.32604/biocell.2026.080282

  doiwww.techscience.com

• Matovina, Mihaela ; Lemmens, Steffi ; Kralj, Marijeta ; Ester, Katja | Polyethylenimine as a gene delivery tool in triple-negative breast cancer cell line and breast cancer stem cell model // Periodicum biologorum, 123 (2021), 3-4; 65-70. doi: 10.18054/pb.v123i3-4.10472

  doihrcak.srce.hrfulir.irb.hr

• Ester, Katja ; Ragland, William Lauman | Chicken anaemia virus impairs nitric oxide production in HD11 chicken macrophages // Slovenian veterinary research, 57 (2020), 4; 179-186

  www.slovetres.sifulir.irb.hr

• Schratter, Gebhard ; Scheruebel, Susanne ; Langthaler, Sonja ; Ester, Katja ; Pelzmann, Brigitte ; Ghaffari-Tabrizi-Wizsy, Nassim ; Rezania, Simin ; Gorischek, Astrid ; Platzer, Dieter ; Zorn- Pauly, Klaus et al. | GIRK1 triggers multiple cancer-related pathways in the benign mammary epithelial cell line MCF10A // Scientific reports, 9 (2019), 19277, 18. doi: 10.1038/s41598-019-55683-w

  doiwww.nature.comdoi.org

• Sambol, Matija ; Ester, Katja ; Landgraf, Stephan ; Mihaljević, Branka ; Cindrić, Mario ; Kralj, Marijeta ; Basarić, Nikola | Competing photochemical reactions of bis-naphthols and their photoinduced antiproliferative activity // Photochemical & photobiological sciences, 18 (2019), 5; 1197-1211. doi: 10.1039/c8pp00532j

  doipubs.rsc.org

• Sambol, Matija ; Ester, Katja ; Husak, Antonija ; Škalamera, Đani ; Piantanida, Ivo ; Kralj, Marijeta ; Basarić, Nikola | Bifunctional Phenol Quinone Methide Precursors: Synthesis and Biological Activity // Croatica chemica acta, 92 (2019), 1; 29-41. doi: 10.5562/cca3455

  doidoi.orghrcak.srce.hrfulir.irb.hr

• Guberović, Iva ; Marjanović, Marko ; Mioč, Marija ; Ester, Katja ; Martin-Kleiner, Irena ; Šumanovac Ramljak, Tatjana ; Mlinarić-Majerski, Kata ; Kralj, Marijeta | Crown ethers reverse P-glycoprotein-mediated multidrug resistance in cancer cells // Scientific reports, 8 (2018), 1; 14467, 14. doi: 10.1038/s41598-018-32770-y

  doiwww.nature.comfulir.irb.hr

• Levatić, Jurica ; Pavić, Kristina ; Perković, Ivana ; Uzelac, Lidija ; Ester, Katja ; Kralj, Marijeta ; Kaiser, Marcel ; Rottmann, Matthias ; Supek, Fran ; Zorc, Branka | Machine learning prioritizes synthesis of primaquine ureidoamides with high antimalarial activity and attenuated cytotoxicity // European journal of medicinal chemistry, 146 (2018), 651-667. doi: 10.1016/j.ejmech.2018.01.062

  doiwww.sciencedirect.comdoi.org

• Knežević Teofilović, Natalija ; Bihi, Majjoub ; Radić Stojković, Marijana ; Tumir, Lidija ; Ester, Katja ; Kralj, Marijeta ; Majhen, Dragomira ; Oršolić, Nada ; Lepur, Adriana ; Vrbanec, Damir et al. | 1-ethyl-3-(6-methylphenanthridine-8-il) urea modulates TLR3/9 activation and induces selective pro-inflammatory cytokine expression in vitro // Bioorganic & medicinal chemistry letters, 27 (2017), 7; 1530-1537. doi: 10.1016/j.bmcl.2017.02.048

  doidoi.orgwww.sciencedirect.com

• Pavić, Kristina ; Perković, Ivana ; Gilja, Petra ; Kozlina, Filip ; Ester, Katja ; Kralj, Marijeta ; Schols, Dominique ; Hadjipavlou- Litina, Dimitra ; Pontiki, Eleni ; Zorc, Branka | Design, synthesis and biological evaluation of novel primaquine-cinnamic acid conjugates of the amide and acylsemicarbazide type // Molecules, 21 (2016), 12; 1629, 24. doi: 10.3390/molecules21121629

  doiwww.mdpi.comfulir.irb.hrdoi.org

• Perković, Ivana ; Antunović, Maja ; Marijanović, Inga ; Pavić, Kristina ; Ester, Katja ; Kralj, Marijeta ; Vlainić, Josipa ; Kosalec, Ivan ; Schols, Dominique ; Hadjipavlou-Litina, Dimitra et al. | Novel urea and bis-urea primaquine derivatives with hydroxyphenyl and halogenphenyl substituents: synthesis and biological evaluation // European journal of medicinal chemistry, 124 (2016), 622-636. doi: 10.1016/j.ejmech.2016.08.021

  doiwww.sciencedirect.comdx.doi.org

• Sović, Irena ; Viskić, Marko ; Bertoša, Branimir ; Ester, Katja ; Kralj, Marijeta ; Hranjec, Marijana ; Karminski-Zamola, Grace | Exploring antiproliferative activity of heteroaromatic amides and their fused derivatives using 3D-QSAR, synthesis and biological tests // Monatshefte für Chemie, 146 (2015), 9; 1503-1517. doi: 10.1007/s00706-015-1478-8

  doilink.springer.comdx.doi.org

• Racane, Livio ; Stojković, Ranko ; Tralić- Kulenović, Vesna ; Cerić, Helena ; Đaković, Marijana ; Ester, Katja ; Mišir Krpan, Ana ; Radić Stojković, Marijana | Interactions with polynucleotides and antitumor activity of amidino and imidazolinyl substituted 2-phenylbenzothiazole mesylates // European journal of medicinal chemistry, 86 (2014), 406-419. doi: 10.1016/j.ejmech.2014.08.072

  doiwww.sciencedirect.comdx.doi.org

• Perin, Nataša ; Nhili, Raja ; Ester, Katja ; Laine, William ; Karminski-Zamola, Grace ; Kralj, Marijeta ; David-Cordonnier, Marie-Hélène ; Hranjec, Marijana | Synthesis, antiproliferative activity and DNA binding properties of novel 5-aminobenzimidazo[1,2-a]quinoline-6-carbonitriles // European journal of medicinal chemistry, 80 (2014), 218-227. doi: 10.1016/j.ejmech.2014.04.049

  doiwww.sciencedirect.comdx.doi.org

• Ester, Katja ; Supek, Fran ; Majsec, Kristina ; Marjanović, Marko ; Lembo, David ; Donalisio, Manuela ; Šmuc, Tomislav ; Jarak, Ivana ; Karminski-Zamola, Grace ; Kralj, Marijeta | Putative mechanisms of antitumor activity of cyano-substituted heteroaryles in HeLa cells // Investigational new drugs, 30 (2012), 2; 450-467. doi: 10.1007/s10637-010-9571-7

  doiwww.springerlink.com

• Šimunović, Mijo ; Perković, Ivana ; Zorc, Branka ; Ester, Katja ; Kralj, Marijeta ; Hadjipavlou-Litina, Dimitra ; Pontiki, Eleni | Urea and carbamate derivatives of primaquine: Synthesis, cytostatic and antioxidant activities // Bioorganic & medicinal chemistry, 17 (2009), 15; 5605-5613. doi: 10.1016/j.bmc.2009.06.030

  doiwww.sciencedirect.comdoi.org

• Ester, Katja ; Hranjec, Marijana ; Piantanida, Ivo ; Ćaleta, Irena ; Ivana, Jarak ; Pavelić, Krešimir ; Kralj, Marijeta ; Karminski-Zamola, Grace | Novel derivatives of pyridylbenzo[b]thiophene-2-carboxamides and benzo[b]thieno[2,3-c]naphthyridin-2-ones: minor structural variations provoke major differences of antitumor action mechanisms // Journal of medicinal chemistry, 52 (2009), 8; 2482-2492. doi: 10.1021/jm801573v

  doipubs.acs.orgdx.doi.org

• Džimbeg, Gabrijela ; Zorc, Branka ; Kralj, Marijeta ; Ester, Katja ; Pavelić, Krešimir ; Andrei, Graciela ; Snoeck, Robert ; Balzarini, Jan ; De Clercq, Erik ; Mintas, Mladen | The novel primaquine derivatives of N-alkyl, cycloalkyl or aryl urea: Synthesis, cytostatic and antiviral activity evaluations // European journal of medicinal chemistry, 43 (2008), 6; 1180-1187. doi: 10.1016/j.ejmech.2007.09.001

  doiwww.sciencedirect.comdoi.org

• Starčević, Kristina ; Kralj, Marijeta ; Ester, Katja ; Sabol, Ivan ; Grce, Magdalena ; Pavelić, Krešimir ; Karminski-Zamola, Grace | Synthesis, Antiviral and Antitumor Activity of 2- substituted-5-amidino-benzimidazoles // Bioorganic & medicinal chemistry, 15 (2007), 13; 4419-4426. doi: 10.1016/j.bmc.2007.04.032

  doihttpdx.doi.orgfulir.irb.hr

• Starčević, Kristina ; Kralj, Marijeta ; Ester, Katja ; Karminski-Zamola, Grace | Synthesis and cytostatic evaluation of pyridopyrimidobenzimidazole derivatives // Heterocycles, 71 (2007), 3; 647-656

• Rajić, Zrinka ; Zorc, Branka ; Raić-Malić, Silvana ; Ester, Katja ; Kralj, Marijeta ; Pavelić, Krešimir ; Balzarini, Jan ; De Clercq, Erik ; Mintas, Mladen | Hydantoin derivatives of L- and D-amino acids: synthesis, antiviral and antitumoral activity evaluations // Molecules, 11 (2006), 11; 837-848. doi: 10.3390/11110837

  doiwww.mdpi.comfulir.irb.hr

• Starčević, Kristina ; Ćaleta, Irena ; Cinčić, Dominik ; Kaitner, Branko ; Kralj, Marijeta ; Ester, Katja ; Karminski-Zamola, Grace | Synthesis, crystal structure determination and antiproliferative evaluation of novel benzazoyl benzamides // Heterocycles, 68 (2006), 11; 2285-2299-x

• Quere, Pascale ; Rivas, Christelle ; Ester, Katja ; Novak, Renata ; Ragland, William | Abundance of IFN-alpha and IFN gamma mRNA in blood of resistant and susceptible chickens infected with Marek's disease virus (MDV) or vaccinated with turkey herpesvirus ; and MDV inhibition of subsequent induction of IFN gene transcription // Archives of virology, 150 (2005), 3; 507-519-x

• Ragland, William L ; Novak, Renata ; El-Attrache, John ; Savić, Vladimir ; Ester, Katja | Chicken Anemia Virus and Infectious Bursal Disease Virus Interfere with Transcription of Chicken IFN-alpha and IFN-gamma mRNA // Journal of interferon & cytokine research, 22 (2002), 4; 437-441-x

• Crnek-Kunstelj, Vesna ; Ester, Katja ; Stipić, Jagoda | Role of retinoic acid and DNA methylation in differentiation of mammalian embryo in vitro. // Periodicum biologorum, 104 (2002), 1; 55-66-x

• Novak, Renata ; Ester, Katja ; Savić, Vladimir ; Sekellick, Margaret J. ; Marcus, Philip I. ; Lowenthal, John W. ; Vainio, Olli ; Ragland, William L. | Immune status assessment by abundance of IFN-alpha and IFN-gamma mRNA in chicken blood. // Human gene therapy, 21 (2001), 8; 643-651-x

Review article (scientific)

• Ragland, William L. ; Novak, Renata ; Ester, Katja ; Savić, Vladimir | Evaluation of immune status in chickens // Periodicum biologorum, 103 (2001), 2; 115-118-x

Letter (scientific)

• Ester, Katja ; Ćurković-Perica, Mirna ; Kralj Marijeta | The phytohormone auxin induces G1 cell cycle arrest of human tumor cells // Planta medica, 75 (2009), 13; 1423-1426. doi: 10.1055/s-0029-1185805

  doiwww.thieme-connect.com

Conference abstract

• Ester, Katja ; Spurny, Pavel ; Šumanovac, Tatjana ; Uzelac, Lidija ; Majerski, Kata ; Ludwig, Jost ; Kralj, Marijeta | Narušavanje integriteta plazmatske membrane u stanicama raka dojke i staničnom modelu epitelno- mezenhimske tranzicije posredstvom adamantanskog krunastog etera // Zbornik sažetaka 14. hrvatskog biološkog kongresa s međunarodnim sudjelovanjem = Book of abstracts of the 14th Croatian biological congress with International Participation. | Zagreb: Hrvatsko biološko društvo, 2022. str. 112-113

• Ester, Katja ; Mioč, Marija ; Gabrilo, Jelena ; Uzelac, Lidija ; Marjanović, Marko ; Spurny, Pavel ; Bonhenry, Daniel ; Šumanovac-Ramljak, Tatjana ; Jost, Ludwig ; Mlinarić-Majerski, Kata et al. | Crown ether compound 613 as a small molecule with good antitumor potential: investigation of membrane perturbation and changes in ion homeostasis // COST BM 1406 Eight Meeting : Abstract Book. | 2018. str. 24-24

• Marjanović, Marko ; Mioč, Marija ; Ester, Katja ; Kralj, Marijeta | The effects of potassium ionophores on mitochondrial homeostasis in breast cancer stem cell model // EMBO workshop: Mitochondria, apoptosis and cancer: book of abstracts. | Ljubljana: Abografika, 2017. str. 74-74

• Sambol, Matija ; Ester, Katja ; Kralj, Marijeta ; Mlinarić-Majerski, Kata ; Basarić, Nikola | Antiproliferative activity of photogenerated naphthalene and antracene bis(quinone methides) derivatives // 4th EFMC Young Medicinal Chemist Symposium : Book of Abstracts. | 2017. str. 121-121

  www.ldorganisation.com

• Zorc, Branka ; Pavić, Kristina ; Hadjipavlou- Litina, Dimitra ; Pontiki, Eleni ; Kralj, Marijeta ; Ester, Katja | Insights into antioxidant and cytostatic activity of the novel primaquine ureidoamides // 10th Joint Meeting on Medicinal Chemistry : Book of Abstracts. | Zagreb: Hrvatsko kemijsko društvo, 2017. str. 245-245

  www.jmmc2017.hr

• Pavić, Kristina ; Ester, Katja ; Kralj, Marijeta ; Schols, Dominique ; Hadjipavlou- Litina, Dimitra ; Pontiki, Eleni ; Zorc, Branka | Biological activity of novel primaquine-cinnamic acid conjugates of the acylsemicarbazide type // Book of Abstracts. | Zagreb: Hrvatsko kemijsko društvo, 2017. str. 243-243

  www.hkd.hr

• Pavic, Kristina ; Ester, Katja ; Kralj, Marijeta ; Schols, Dominique ; Hadjipavlou-Litina, Dimitra ; Pontiki, Eleni ; Zorc, Branka | Biological activity of novel primaquine-cinnamic acid conjugates of the amide type. | 2017. str. 1-1

• Ester, Katja ; Spurny, Pavel ; Šumanovac-Ramljak, Tatjana ; Mlinarić-Majerski, Kata ; Ludwig, Jost ; Kralj, Marijeta | Measurements of ion fluxes in breast cell lines using Microelectrode flux estimation // COST BM1406 Fourth Meeting Abstract book. | 2017. str. 20-20

• Ester, Katja; Marjanović, Marko; Guberović, Iva; Uzelac, Lidija; Mikecin Dražić, Ana-Matea; Martin Kleiner, Irena; Šumanovac-Ramljak, Tatjana; Mlinarić-Majerski, Kata; Schreibmayer, Wolfgang; Kralj, Marijeta | Manipulation of bioelectrical properties in breast cancer stem cell model // 4th Meeting of the Croatian Association for Cancer Research with International Participation "From Bench to Clinic" : Book of Abstracts, Libri Oncologici : Croatian Journal of Oncology, Vol. 44 No. 1 / Ozretić, Petar ; Levanat, Sonja (ur.). | Zagreb: Hrvatsko društvo za istraživanje raka (HDIR), 2016. str. 31.-31

• Ester, Katja ; Schreibmayer, Wolfgang ; Šumanovac-Ramljak, Tatjana ; Mlinarić-Majerski, Kata ; Kralj, Marijeta | Resting potential of cancer stem cells // COST BM1406 Second Meeting Abstract Book. | 2016. str. 22-22

• Ester Katja ; Marjanović Marko ; Guberović Iva ; Uzelac Lidija ; Mikecin Ana-Matea ; Šumanovac- Ramljak Tatjana ; Mlinarić-Majerski Kata ; Kralj Marijeta | Modulation of membrane potential by Proprietary Potassium Ionophores in Breast Cancer Stem Cell Model // COST BM1406 First Meeting Abstract Book. | 2015. str. 22-22

• Ester, Katja ; Guberović, Iva ; Marjanović, Marko ; Uzelac, Lidija ; Mikecin, Ana-Matea ; Martin- Kleiner, Irena ; Šumanovac-Ramljak, Tatjana ; Mlinarić-Majerski, Kata ; Kralj, Marijeta | Modulation of Multiple Drug Resistance by Proprietary Potassium Ionophores in Breast Cancer Stem Cell Model // Molecules of Life, FEBS3+ Meeting. | Ljubljana: Slovenian Biochemical Society, 2015. str. 249-249

• Ester, Katja; Mikecin Ana-Matea; Kralj Marijeta | Differential antiproliferative activity of adenovirally expressed Apoptin in vitro // Power of Viral Vectors in Gene Therapy and Basic Science 2014: Book of Abstract. | Zagreb: Hrvatsko mikrobiološko društvo, 2014. str. 53-53

• Ester, Katja; Jurlin, Jelena; Mikecin, Ana-Matea; Kralj, Marijeta | The antiproliferative effects of chicken anemia virus-derived protein apoptin toward cancer stem cells // 1st Croviwo Croatian Virus Workshop, Basic and Translational Virus Research Book of Abstract. | Zagreb: Hrvatsko mikrobiološko društvo, 2014. str. 20-21

• Perin, Nataša ; Aleksić, Maja ; Sović, Irena ; Hranjec, Marijana ; Ester, Katja ; Kralj, Marijeta ; Ratkaj, Ivana ; Kraljević Pavelić, Sandra ; Nhili, Raja ; David-Cordonnier, Marie-Hélène et al. | Biologically active heteroaromatic derivatives with amino side chains as potential anticancer agents // Knjiga sažetaka X. Susret mladih kemijskih inženjera. | Zagreb: Fakultet kemijskog inženjerstva i tehnologije Sveučilišta u Zagrebu, 2014. str. 175-175

• Perin, Nataša ; Aleksić, Maja ; Sović, Irena ; Hranjec, Marijana ; Ester, Katja ; Kralj, Marijeta ; Ratkaj, Ivana ; Kraljević Pavelić, Sandra ; Nhili, Raja ; David-Cordonnier, Marie-Hélène et al. | Biologically active heteroaromatic derivatives with amino side chains as potential anticancer agents // XXIIth National Meeting on Medicinal Chemistry : Abstract Book. | Rim: Italian Chemical Society Division of Medicinal Chemistry, European Federation for Medicinal Chemistry, 2013. str. 77-78

• Viskić, Marko ; Sović, Irena ; Bertoša, Branimir ; Ester, Katja ; Kralj, Marijeta ; Hranjec, Marijana ; Karminski-Zamola, Grace | Synthesis and QSAR of novel heteroaromatic amides as potentially antitumor active compounds // 6th Summer School Medicinal Chemistry. | Regensburg, 2012. str. 255-255

• Majsec, Kristina ; Ester, Katja ; Marjanović, Marko ; Kralj, Marijeta | Highly Cytotoxic Cyano-Substitued Compounds: A Search for Mechanism of Antitumor Action // Stem Cells and Cancer, 6. International Heinrich FC Behr Symposium Abstracts. | Heidelberg: German Cancer Research Centre, 2010

• Ester, Katja ; Hranjec, Marijana ; Piantanida, Ivo ; Karminski-Zamola, Grace ; Kralj, Marijeta | Različiti mehanizmi protutumorskog djelovanja novosintetiziranih derivata benzotiofena // Zbornik sažetaka 10. Hrvatskog biološkog kongresa. | Zagreb: Hrvatsko biološko društvo, 2009. str. 88-89

• Ester, Katja ; Ćurković-Perica, Mirna ; Kralj, Marijeta | Plant Hormones Auxins Disturbe Cell Cycle of Human Tumor Cells // EMBO Young Scientists Forum, Book of Abstract. | 2009. str. 19-19

  bioinfo.hr

• Ćurković Perica, Mirna ; Ester, K. ; Kralj, M. | Auxins: effects on bacteria and tumours // Ehrilch II - 2nd World Conference on Magic Bullets. | Nürnberg, 2008. str. A-65-A-65

  www.ehrlich-2008.org

• Rajić, Zrinka ; Zorc, Branka ; Raić-Malić, Silvana ; Ester, Katja ; Kralj, Marijeta ; Pavelić, Krešimir ; Balzarini, Jan ; De Clercq, Erik ; Mintas, Mladen | Hydantoin derivatives of L- and D-amino acids: synthesis, antiviral and antitumoral activity evaluations // XX. Jubilarni hrvatski skup kemičara i kemijskih inženjera – knjiga sažetaka. | Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2007

• Džimbeg, Gabrijela ; Rajić, Zrinka ; Zorc, Branka ; Kralj, Marijeta ; Ester, Katja ; Pavelić, Krešimir ; Balzarini, Jan ; De Clercq, Erik ; Mintas, Mladen | The novel primaquine derivatives of N-alkyl, cycloalkyl or aryl urea: synthesis, cytostatic and antiviral activity evaluations // Abstracts of the 3rd Pharmaceutical Sciences World Congress. | 2007

• Savić, Vladimir ; Ragland, L. William ; Novak, Renata ; Ester, Katja | Highly Virulent Infectious Bursal Disease in Broilers with No or Low Mortality but with Reduced Body Masses and Immunosuppression // Acta Microbiologica et Immunologica Hungarica, Vol.52, 2005, Supplement. | Budimpešta: Akadémiai Kiadó, 2005. str. 137-138-x

• Savić, Vladimir ; Ragland, L. William ; Novak, Renata ; Ester, Katja | Broilers with No or Low Mortality but with Reduced Body Masses and Immunosuppression // 14^th World Veterinary Poultry Congress. Abstract Book. | Istanbul, 2005. str. 087-403-x

• Quere, Pascale ; Rivas, Christelle ; Ester, Katja ; Novak, Renata ; Ragland, William L | Blood IFN-alpha and IFN-gamma mRNA abundance as a measure of systemic immunosuppression in Marek’s disease ? // Program and abstracts. | Jeruzalem: BARD, 2002. str. 110-110-x

• Ragland, William Lauman ; Savić, Vladimir ; Novak, Renata ; Ester, Katja | Abundance of ChIFN-alpha and ChIFN-gamma mRNA in blood of broiler chickens during an outbreak of chicken infectious anaemia. // The Faseb Journal. | Bethesda (MD): The Federation of American Societies for Experimental Biology, 2002. str. A304-A304-x

• Ragland, William L. ; Savić, Vladimir ; Novak, Renata ; Ester, Katja | Abundance of ChIFN-alpha and ChIFN-gamma mRNA in blood of broilert chickens during an outbreak of chicken infectious anaemia. // Techniques and criteria to establish immunosuppression and pathological changes. | Brescia, 2001. str. 25-25-x

• Novak, Renata ; Ester, Katja ; Ragland, W. L. | Assay of alpha and gamma interferon mRNA in chicken blood by competitive nucleic acid hybridization in microtitre plates // COST action 839 - Working group 2 founding meeting. | Budimpešta, 1999. str. WG2 1.6-x

Original scientific paper

• Ragland, William L. ; Novak, Renata ; El-Attrache, John ; Ester, Katja | Chicken infectious anaemia virus interferes with transcription for chicken interferon alpha and gamma. // Infectious Bursal Disease and Chicken Infectious Anaemia. | Giessen: Justus Liebig University, 2001. str. 404-408-x

• Savić, Vladimir ; Ragland, William L. ; Novak, Renata ; Ester, Katja | Infectious bursal disease outbreak: experimental infection of broilers with evidence of significantly reduced body weight gain and interference with transcription for interferon // Infectious Bursal Disease and Chicken Infectious Anaemia. | Giessen: Justus Liebig University, 2001. str. 281-286-x

Conference abstract

• Oskomić, Marina; Barbarić, Lea; Ester, Katja; Tomašić Paić, Ana; Matovina, Mihaela | DPP3 knockdown in HeLa cells induces G1 arrest // Oncology insights, 3, 2025. str. 148-149

  www.sdir.ac.rs

• Guberović, Iva ; Marjanović, Marko ; Ester, Katja ; Mikecin, Ana- Matea ; Martin-Kleiner, Irena ; Šumanovac-Ramljak, Tatjana ; Mlinarić-Majerski, Kata ; Kralj, Marijeta | The effects and molecular mechanisms of crown ethers on drug efflux pumps // European journal of cancer (1990), 2016. str. S112-S113. doi: 10.1016/S0959-8049(16)61398-9

  doi

• Guberović, Iva; Marjanović, Marko; Ester, Katja; Martin-Kleiner, Irena; Šumanovac-Ramljak, Tatjana; Mlinarić-Majerski, Kata; Kralj, Marijeta | Proprietary crown ethers significantly inhibit P-glycoprotein activity // Libri oncologici : Croatian journal of oncology, 44, 1, 2016. str. 34-34

  hrcak.srce.hr

• Ester, Katja; Jurlin, Jelena; Mikecin, Ana-Matea; Kralj, Marijeta | Chicken anemia virus derived protein apoptin triggers cell cycle arrest but not apoptosis in cancer stem cells // Periodicum biologorum. Supplement, 116, S1, 2014. str. 28-28

• Aleksić, Maja ; Sović, Irena ; Viskić, Marko ; Bertoša, Branimir ; Ester, Katja ; Kralj, Marijeta ; Karminski-Zamola, Grace | Synthesis, Antitumor Activity and QSAR Analysis of Heterocyclic Amides and Quinolones // ChemMedChem, 2012. str. 250-251

Extended conference abstract

• Ester, Katja; Mioč, Marija; Spurny, Pavel; Bonhenry, Daniel; Uzelac, Lidija; Šumanovac, Tatjana; Majerski, Kata; Minofar, Babak; Ludwig, Jost; Kralj, Marijeta | Small hydrophobic molecules in multi-targeted cancer therapy: disruption of plasma membrane and mitochondrial functions // Oncology insights, 1, 2023. str. 30-31

Unpublished conference paper

• Mamić, Antonija; Ester, Katja; Hranjec, Marijana | SYNTHESIS AND ANTIPROLIFERATIVE ACTIVITY OF NEW PHENYL ACRYLONITRILES // European School of Medicinal Chemistry ESMEC 45th Advanced Course of Medicinal Chemistry and Seminar for PhD students | Urbino, Italija, 05.07.2026-09.07.2026

• Pavić, Kristina ; Perković, Ivana ; Ester, Katja ; Kralj, Marijeta ; Schols, Dominique ; Hadjipavlou-Litina, Dimitra ; Pontiki, Eleni ; Mabeta, Peace ; Zorc, Branka | Sinteza i biološko djelovanje konjugata primakina i derivata cimetne kiseline // Mini simpozij Sekcije za medicinsku i farmaceutsku kemiju Hrvatskog kemijskog društva | Zagreb, Hrvatska, 17.10.2017-17.10.2017

Doctoral thesis

• Ester, Katja | Immune status assessment by abundance of interferon alpha and gamma mRNA in chicken blood / Ragland, William L (mentor). | Zagreb, Prirodoslovno-matematički fakultet, Zagreb, 2006

Master's thesis (university)

• Gabrilo, Jelena | Mehanizam djelovanja krunastog etera 613 na stanične linije dojke / Katja Ester (mentor). | Zagreb, Prirodoslovno-matematički fakultet, Zagreb, 2018

• Jurlin, Jelena | Protutumorski učinak apoptina na različitim staničnim modelima / Ester, Katja (mentor). | Zagreb, Prirodoslovno-matematički fakultet, Zagreb, 2013

• Majsec, Kristina | Protutumorski učinci cijano-supstituiranih organskih spojeva in vitro / Ester, Katja (mentor). | Zagreb, Prirodoslovno-matematički fakultet, Zagreb, 2010

Bachelor's thesis (university)

• Lemmens, Steffi | Comparision of transfection efficiency and antitumour effects of apoptin between different tumour cell lines / Ester, Katja (mentor). | Ghent, Belgija, 2016

Popular science article

• Ragland, W.L. ; Novak, Renata ; Ester, Katja ; Savić, Vladimir | IMMUNE STATUS ASSESSMENT BY ABUNDANCE OF INTERFERON (IFN ALPHA AND GANINIA mRNA IN CHICKEN BLOOD // COST ACTION 839 Workshop, 2000

Croatian Biological Society
EACR (European Association of Cancer Research)

FEMS

COST