Joanna Obacz PDF Print E-mail


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M.Sc.: Biotechnology (Medical Univeristy of Silesia, Poland)


Project description

As a result of insuficient oxygen delivery (hypoxia), tumor cells start an addaptation machinery, which leads to activation of hypoxia inducible factor 1 (HIF-1) and in consequence expression of carbonic anhydrase IX (CA IX). Our role is to investigate molecular mechanisms underlying expression of both hypoxia-induced CA IX and DNA-damage induced p53 upon different stresses. 

CA IX is a metalloenzyme involved in regulation of cellular pH by reversible conversion of CO2 to bicarbonate and proton. It is know that CA IX promotes tumor growth and survival as well as serves as a negative prognostic factor in various types of cancers. p53 is a well-established transcriptional factor playing a crucial role in response to DNA damage, cell cycle control, apoptosis and senescence.

Additionaly, we would like to characterize new markers, which could help in early-stage cancer detection and setting individual patient's treatment.



Journal publications:

Obacz  J., Brychtova  V., Podhorec  J., Fabian P., Dobes  P., Vojtesek B., et al., 2015a. Anterior gradient protein 3 is associated with less aggressive tumors and better outcome of breast cancer patients. Onco Targets Ther 8, 1523-1532.  doi: 10.2147/OTT.S82235

Obacz  J., Takacova M., Brychtova  V., Dobes  P., Pastorekova  S., Vojtesek  B., et al., 2015b. The role of AGR2 and AGR3 in cancer: similar but not identical. Eur J Cell Biol 94, 139-147. doi: 10.1016/j.ejcb.2015.01.002

Obacz J., Pastorekova S., Vojtesek B., Hrstka R., 2013. Cross-talk between HIF and p53 as mediators of molecular responses to physiological and genotoxic stresses, Molecular Cancer 12:93, doi:10.1186/1476-4598-12-93

Conference publications:

Obacz J., Brychtova V., Podhorec J., Fabian P., Dobes P., Vojtesek B., Hrstka R., 2015. Anterior gradient protein 3 (AGR3) is associated with less aggressive tumours and better outcome of breast cancer patients. XXXIX. Brno Oncology days and XXIX. Conference for medical professionals, Brno, Czech Republic

Obacz J., Pastorekova S., Takacova M., Brychtova V., Vojtesek B., Hrstka R., 2014. Anterior gradient protein 3 (AGR3) is a new intracellular signaling molecule, which influences tumor cell response to apoptosis-inducing agents. XVI. Meeting of Biochemists and Molecular Biologists, Brno, Czech Republic

V. Brychtova, J. Blahak, J. Obacz, J. Zelinka, P. Fabian, R. Hrstka, P. Pavlovsky, O. Bulik, B. Vojtesek, Evaluation of AGR2, AGR3 and MUC4 expression in oral cavity carcinomas, XXXVIII. Brno Oncology days and XXVIII. Conference for medical professionals, Brno, Czech Republic, 24-25 April 2014

Obacz J., " Detecting cancer even earlier to beat the unbeatable", Denmark, Copenhagen 2013

A. Zulfiqar, A. Pfreundt, D. Kwasny, J. Obacz, W. Svendsen, “Fabrication of Polysilicon Nanowire Field Effect Transistors for Biosensor Applications”, Semiconductor Nanowires Based Sensors, Rennes, France, 2012



Technical University of Denmark, Denmark

Copenhagen Univeristy, Denmark

Medical Univeristy of Vienna, Austria



20 Aug- 19 Sept 2012: Technical University Denmark, Denmark

20 Aug- 19 Sept 2012: Copenhagen Univeristy, Denmark

14 Apr- 2 May 2014: Medical University of Vienna, Vienna


Seminars/ Workshops

RECAMO Joint Meeting- through cancer research towards applied molecular oncology, Brno, Czech republic, 2011-2015

Patent day, workshop with NL Patent officer- Xensor, Delft, Nederlands, 26th September, 2013


Network Meetings

Copenhagen, Denmark, August 25-28, 2014

Basel, Switzerland, March 18-19, 2014

Delft, The Netherlands, September 23-26, 2013

Copenhagen, Denmark, January 15-17, 2013

Vienna, Austria, September 25-26, 2012

Basel, Switzerland, March 26-27, 2012



Masaryk Univeristy, Brno:

Proteomics- basic course, March-June 2012

Proteomics- practice, May 2012

Structure and function of eucaryotic chromosomes, March-June 2012

Protein characterisation using mass spectrometry, September-December 2012

Advanced methods of biophysics in experimental biology, September-December 2012

Genetic codes, April, 2013

Early Molecuar Evolution, April, 2013

Analysis of chromatin structure - practical training, April 2013

Genomics course + practical training

Bioinformatics-proteins course + practical training

RECAMO seminars: technology transfer, protein glycosylation in cancer, 2013-2014

Seminars for PhD students, 2013-2014

Marie Curie courses:

Courses from Network meeting in Basel, March 2012

Courses from Network meeting in Bratislava and Vienna, September 2012

Courses from Network meeting in Copenhagen, January 2013

Courses from Network meeting in Delft, September 2013

Courses from Network meeting in Basel, March 2014

Courses from Network meeting in Copenhagen August 2014

Label free sensing, summer school, DTU Denmark, August 12-23, 2013